Category: Nephrology and Dialysis · Hair Loss
Hair Loss on Dialysis So Bad You Needed a Wig, Now Growing Back: How to Keep It From Falling Out Again — Causes, Protein, Kidney-Safe Vitamins, and Supplements Not to Self-Buy
AI Overview / Quick Answer (BLUF)
Hair loss on dialysis is usually telogen effluvium: follicles enter a resting phase together after stress such as uremia, starting dialysis, anemia, or protein deficit. Hair can regrow with adequate dialysis, enough protein, doctor-prescribed renal vitamins, and no self-bought hair supplements.
hemodialysis or peritoneal dialysis patients with heavy, diffuse hair shedding — causes, protein losses, food, kidney-safe vitamins, supplements to avoid, dialysis adequacy, and how long regrowth takes.
Hair loss after a kidney transplant? Read
hair loss after kidney transplant ·
Thyroid disease too? Read
thyroid-related hair loss ·
Red flags ·
Causes table ·
Nutrient table ·
Teens on dialysis ·
Comparison table ·
FAQ
From a kidney patient group: my hair fell out so badly I needed a wig, now it is growing back — how do I keep it from falling out again?
Direct answer: hair growing longer means the follicles are still working. What keeps it from shedding again is controlling the original triggers: adequate dialysis, enough protein, treating anemia or iron deficiency as your kidney care team finds it, and gentle hair care.
A member of a chronic kidney disease patient group wrote: “My hair used to fall out so badly I did not dare leave the house and had to find a wig. Now it has started to grow a little longer. Is there any way to keep it from falling out again?”
Losing hair until you avoid going out affects both confidence and daily life. This article summarizes what the research says actually helps, and what kidney patients should not try on their own.
Another post from a teen dialysis group joked, “My hair gets shorter every day, but maybe that is just some people,” which reflects the same worry.
Hair loss after starting dialysis happens to many people, not just a few, and there is a dedicated section on teens and young adults on dialysis below.
Red flags: go to hospital or see a doctor urgently
Direct answer: hair loss alone is not life-threatening, but these symptoms in a dialysis patient need urgent care.
Go to the emergency department now
- Muscle weakness, numbness, palpitations or an irregular heartbeat, especially after supplements, fruit, or herbs — possible high potassium
- Breathlessness, unable to lie flat, marked swelling, or chest pain — possible fluid overload or a heart problem
- Persistent hiccups, confusion, or seizures after eating star fruit or its juice — star fruit is neurotoxic in kidney failure
- Fever, chills, or a red, swollen, or pus-draining access or catheter site
Tell your kidney care team or see a dermatologist soon
- Round, sharply defined bald patches, or patchy loss of eyebrows or eyelashes
- A red, painful, thickly scaling, pustular, or scarring scalp
- Hair loss with a facial rash, joint pain, mouth ulcers, or low-grade fever, especially if SLE caused your kidney disease
- Marked pallor or unusual fatigue — anemia may need treatment adjustment
- Avoiding going out, feeling sad or hopeless for more than 2 weeks — tell your care team or contact a mental health crisis line
1. Why dialysis patients lose so much hair
Direct answer: it is mostly telogen effluvium from the body’s stress during kidney failure and the start of dialysis, plus factors common on dialysis: protein deficit, low zinc, anemia, and certain medicines.
Telogen effluvium: shedding lags the trigger by months
Malkud’s review (2015)
explains that after a major stress such as serious illness, surgery, infection, malnutrition, or rapid weight loss, many follicles enter the resting phase together and shed diffusely about 2–4 months later.
People with kidney failure often face several triggers at once around the start of dialysis, so shedding peaks in that period.
Evidence in dialysis patients
A 2023 study of skin findings in hemodialysis patients
found hair changes in 38% and nail changes in 65.3%.
Ikizler’s study (1994)
measured 6.1–8.0 g of amino acids lost into the dialysate per session, depending on the dialyzer.
And Tonelli’s meta-analysis of 128 studies (2009)
found lower zinc and selenium levels in hemodialysis patients than in controls.
Causes of hair loss in dialysis patients and what to check (cards on mobile)
| Cause | Mechanism | What to check | How to address it |
|---|---|---|---|
| Body stress from kidney failure and starting dialysis | Follicles enter the resting phase together and shed 2–4 months later | Whether shedding lines up with starting dialysis, surgery, or a hospital stay | Regular, adequate dialysis; hair usually regrows by itself |
| Protein-energy deficit | Amino acid loss during dialysis, poor appetite, and leftover pre-dialysis protein restriction | Albumin, body weight, dietitian assessment | Raise protein to 1.0–1.2 g/kg/day per your unit plan |
| Anemia and iron deficiency | Fast-dividing follicles need oxygen and iron | Hemoglobin, ferritin, transferrin saturation | Iron and erythropoiesis-stimulating agents as your nephrologist prescribes |
| Low zinc | Common on hemodialysis and involved in hair formation | Blood zinc level when suspected | Supplement only if deficient, at the dose your doctor sets |
| Thyroid dysfunction | Thyroid hormone directly controls the hair cycle | TSH and thyroid hormones | Treat any thyroid disease found |
| Certain medicines | Anticoagulants such as heparin and some other drugs can cause shedding, but uncommonly | Review every medicine against when shedding started | Your doctor may adjust; never stop on your own |
| Other hair or systemic diseases | Pattern hair loss, alopecia areata, traction from tight styles, or an SLE flare | Pattern of loss, scalp exam, autoimmune history | See a dermatologist; treat the specific cause |
2. Protein and food: eat enough without adding phosphorus
Direct answer: once dialysis starts, you need more protein, not less. The KDOQI 2020 target is 1.0–1.2 g per kg of body weight per day, chosen from low-phosphorus sources.
Protein target
The KDOQI 2020 nutrition guideline
suggests 1.0–1.2 g/kg/day for metabolically stable hemodialysis and peritoneal dialysis patients, for example about 50–60 g a day at 50 kg.
People taught to restrict protein before dialysis often keep doing so and fall short without realizing it.
Egg whites are good, but not the only source
Kalantar-Zadeh (2010)
proposed looking at the phosphorus-to-protein ratio; egg whites have a low ratio and suit kidney patients. Phosphate additives in processed meats, ready meals, and some soft drinks are absorbed more than phosphorus from natural foods.
The number of eggs per day should be set by your dietitian alongside fish, chicken, and your own blood results.
- Egg whites, fish, and skinless chicken as main protein sources
- Spread protein across meals, and eat after dialysis to replace losses
- Take phosphate binders with meals as prescribed
- Processed foods and drinks with phosphate additives
- Star fruit and star fruit juice in any form
- High-potassium fruit or juices beyond what your kidney care team allows
How severe is your hair loss, and should you see a doctor soon?
Get a severity check and personalized guidance from our Advisory team — the assessment helps you see how closely your hair-loss pattern fits, which band it falls in, and when not to wait. Use it alongside the red-flag section above; it does not diagnose any disease.
3. Kidney-safe vitamins, and supplements not to self-buy
Direct answer: dialysis washes out water-soluble vitamins, so a low-dose renal B-complex and vitamin C prescribed by your doctor is used. Ordinary hair supplements were not designed for people whose kidneys do not work.
The right vitamin: a renal formula
KDOQI 2020
suggests replacing water-soluble vitamins when intake is inadequate and not routinely supplementing vitamins A and E, because they can build up to toxic levels in kidney patients.
Many hair formulas contain vitamin A; some contain high-dose vitamin C, which raises oxalate, or minerals and herbs the kidneys cannot clear.
Zinc: test first, then supplement
A meta-analysis of 15 randomized trials
found zinc supplementation in hemodialysis patients raised zinc levels and dietary protein intake, but it did not measure hair outcomes directly.
KDOQI 2020 does not recommend routine zinc for everyone, so check the level first and supplement only if deficient.
Biotin: it distorts blood tests
A JAMA study (Li 2017)
gave healthy adults 10 mg of biotin a day for 7 days and found interference in 39% of biotinylated assays.
Dialysis patients have regular monitoring blood tests and clear biotin more slowly than others, so tell your kidney care team before every blood draw if you take it.
Iron: let your kidney team decide
Trost (2006)
links iron deficiency with hair loss and warns that ferritin rises with inflammation, so dialysis patients need both ferritin and transferrin saturation.
Many already receive intravenous iron at the dialysis unit, so buying extra iron tablets is unnecessary and risks overdose.
Nutrients and supplements for dialysis patients with hair loss (cards on mobile)
| Nutrient | Role in hair | Kidney-safe source | Caution |
|---|---|---|---|
| Protein | Building block of hair keratin | Egg whites, fish, chicken | Avoid phosphate-added processed meat; amount per your dietitian |
| B-complex and folate | Support cell division and red cell production | Renal vitamin prescribed by your doctor | Washed out during dialysis; take after dialysis as advised |
| Vitamin C | Helps collagen formation and iron absorption | Low dose in a renal vitamin | High doses raise oxalate build-up |
| Vitamins A and E | Do not help hair unless deficient | Enough from a normal diet | Do not self-supplement; excess vitamin A itself causes hair loss |
| Zinc | Involved in follicle repair | Meat, eggs, or a supplement when tested deficient | Not routine for everyone; long-term excess causes copper deficiency |
| Biotin | No evidence of benefit without deficiency | The amount in a renal vitamin is enough | High doses distort blood tests; tell your kidney team before blood draws |
| Collagen, herbs, and hair formulas | Insufficient evidence in kidney patients | Only after your kidney care team checks the ingredients | May contain potassium, phosphorus, or substances the kidneys cannot clear |
4. Adequate dialysis, scalp care, and how long regrowth takes
Direct answer: dialysis adequacy is measured by Kt/V, not by whether waste values look low. KDOQI 2015 targets an spKt/V of 1.4 per session for thrice-weekly hemodialysis, with a minimum of 1.2.
Dialysis adequacy
The KDOQI 2015 hemodialysis adequacy guideline
uses Kt/V to show whether each session clears enough waste. Attending every session and staying for the full time is what patients can do themselves to reach the target.
Peritoneal dialysis has its own criteria; ask your kidney care team for your latest result.
Medicines used during dialysis
A 2017 case report
notes that almost every anticoagulant class, including heparin, can cause hair loss that reverses when the drug is adjusted, though it is uncommon.
These drugs are essential for dialysis, so the decision belongs to your doctor; never ask to stop on your own.
Topical minoxidil is mainly for pattern hair loss; if you want to use it, consult a dermatologist together with your nephrologist.
Caring for regrowing hair
- Use a mild shampoo and a wide-tooth comb; blow-dry on warm, not hot
- Keep wearing a wig or head covering if you like; choose breathable, non-tight styles
- A smooth pillowcase reduces friction during sleep
- Tight ponytails, braids, or clips in the same spot every day, which can cause traction hair loss
- Coloring, perming, straightening, or high heat while new hair is coming in
How long regrowth takes
If heavy shedding returns, there is usually a new trigger such as infection, a hospital stay, worsening anemia, or poor intake. Tell your kidney care team so they can find the cause, rather than buying more supplements.
5. Teens and young adults on dialysis: hair loss and confidence
Direct answer: hair loss can hit young people’s confidence hard, and it is worth telling your kidney care team. The causes and care are the same as in adults, but emotional support and appearance should be addressed together from the start.
Evidence in young people on dialysis
A UK survey of young adults on kidney replacement therapy (Hamilton 2018),
including 173 on dialysis and 417 with a transplant, found that negative body image and stigma were linked with poorer mental wellbeing, and dialysis was linked with lower wellbeing.
Interviews with 27 people aged 12–24 with advanced kidney disease (Tong 2013)
found that feeling inferior, including impaired body image, was one of the main themes.
Neither study measured hair directly, but both help explain why hair loss weighs so heavily at this age.
What helps while waiting for regrowth
- A shorter cut or new style makes thinning less visible and reduces weight pulling on the roots
- Wigs, hats, or scarves are fine; choose breathable ones that are not tight
- Tell the nurses or doctors at your dialysis unit that hair loss is affecting your confidence, so they can look for causes and refer you to a psychologist or dermatologist when needed
- Talk with other young people on dialysis in a group you trust, so you feel less alone
- Bleaching, coloring, perms, or straightening while the new hair is still fine; wait until it is stronger and do a skin patch test first
- Buying hair vitamins, collagen, or hair-growth pills based on reviews
Telogen effluvium does not make the follicles shrink or die. Most hair regrows once the triggers are fixed, but how thick it gets varies from person to person. If hair keeps thinning after 6 months, ask a doctor to look for other causes.
6. Comparison table: managing hair loss on dialysis
Direct answer: what works is fixing the triggers — adequate dialysis, enough protein, and treating anemia. Self-bought hair supplements and oral minoxidil can be harmful for kidney patients.
Comparison of medical, dietary, and self-care approaches, generic names only (cards on mobile)
| Approach | What it helps | Evidence | Caution for kidney patients |
|---|---|---|---|
| Attend every session for the full time | Reduces uremia, the main trigger | KDOQI 2015 target spKt/V 1.4, minimum 1.2 | Ask your unit for your latest Kt/V |
| Reach the protein target | Replaces amino acids lost during dialysis | KDOQI 2020 suggests 1.0–1.2 g/kg/day | Choose low-phosphorus sources; amount per your dietitian |
| Renal vitamin | Replaces B vitamins and vitamin C washed out by dialysis | KDOQI 2020 | Use as prescribed; do not stack with general multivitamins |
| Iron and erythropoiesis-stimulating agents | Correct anemia, a contributing trigger | Trost 2006 on iron and hair loss | Your nephrologist adjusts by ferritin and transferrin saturation |
| Zinc supplement | Corrects documented low zinc | 15 randomized trials: higher zinc and protein intake | Test first; not routine for everyone |
| Topical minoxidil | Stimulates follicles in pattern hair loss | Not needed for recovering telogen effluvium | Consult dermatology plus nephrology; never self-start the oral form |
| Self-bought hair vitamins | No evidence in kidney patients | Biotin distorted 39% of biotinylated assays (Li 2017) | May contain vitamin A, minerals, or herbs that accumulate |
| Gentle hair care and wigs | Less breakage and traction, more confidence | Standard telogen effluvium care principles | Choose breathable, non-tight wigs |
Frequently asked questions (FAQ)
Questions dialysis patients often ask about hair loss
Why do dialysis patients lose so much hair?
The most common cause is telogen effluvium. When the body goes through a major stress such as uremia from kidney failure, starting dialysis, access surgery, infection, or anemia, many follicles enter the resting phase together and shed about 2–4 months later. Protein deficit, low zinc, and iron deficiency add to it. A study of hemodialysis patients found hair changes in about 38%, so you are not alone.
Will hair lost during dialysis grow back as thick as before?
If it is telogen effluvium, the follicles are not destroyed and hair usually regrows once the triggers are controlled. New hair is often visible within 3–6 months, but hair grows only about 1 cm per month, so near-normal thickness usually takes 6–12 months or longer. If thinning has a specific pattern, such as patches, a steadily widening part, or scarring on the scalp, another hair disorder may be present and a dermatologist should examine it.
Does hemodialysis really remove protein?
Yes. Studies measured about 6–8 g of amino acids lost into the dialysate per hemodialysis session, and peritoneal dialysis also loses protein through the fluid. This is why people on dialysis need more protein than people with kidney disease who are not yet on dialysis, and should not keep restricting protein as they did before dialysis started.
How much protein should a dialysis patient eat, and are egg whites really good?
The KDOQI 2020 guideline suggests about 1.0–1.2 g of protein per kg of body weight per day for stable dialysis patients, for example about 50–60 g a day at 50 kg. Egg whites are a good choice because they have a low phosphorus-to-protein ratio, but they are not the only source; fish and chicken work too. Avoid processed foods with phosphate additives, and let your unit dietitian work out how many eggs and how much food fit your blood results.
Can dialysis patients buy hair vitamins, biotin, or zinc on their own?
Not without asking your kidney care team. Many hair formulas contain vitamin A, which can accumulate in kidney patients, and some contain minerals, high-dose vitamin C, or herbs that are not suitable. High-dose biotin can distort certain blood tests. Zinc should be checked first, because KDOQI does not recommend routine zinc for everyone. The right choice is a low-dose renal B-complex and vitamin C prescribed by your doctor.
Does the heparin used during hemodialysis cause hair loss?
Almost every class of anticoagulant, including heparin, has been reported to cause hair loss, but it is uncommon and usually reverses once the drug is adjusted. Do not ask to stop or reduce it yourself, because it keeps blood from clotting in the dialysis circuit. Tell your kidney care team when the shedding started compared with any medicine change, and your doctor will weigh it against the more common causes.
Can dialysis patients use minoxidil for hair loss?
Do not take oral minoxidil on your own, because it causes fluid retention and lowers blood pressure, and dialysis patients cannot clear extra fluid themselves. Topical minoxidil is mainly for pattern hair loss and is not needed for telogen effluvium that is already recovering. If you want to use it, talk to a dermatologist together with your nephrologist first.
What tests should I ask about when losing hair on dialysis?
Ask your kidney care team about dialysis adequacy (Kt/V), albumin, hemoglobin, iron studies including ferritin and transferrin saturation, thyroid function (TSH), and zinc if deficiency is suspected, plus a review of every medicine you take. If your kidney disease was caused by an autoimmune disease such as SLE, tell your doctor, because a flare can cause hair loss.
A teenager on dialysis is losing hair and confidence: what helps, and is hair coloring okay?
Hair loss after starting dialysis is common and can hit young people’s confidence hard. A survey of young adults on dialysis or with a kidney transplant found that negative body image was linked with poorer mental wellbeing, so tell your kidney care team early so they can look for the cause. While waiting for regrowth, a shorter cut, a wig, a hat, or a scarf are all fine. Avoid bleaching, coloring, perms, or straightening until the new hair is stronger. If you feel sad or do not want to leave home for more than 2 weeks, tell your kidney care team or call the Thai mental health hotline 1323.
Scientific mechanism in brief
Summary by Asst. Prof. Dr. Norawit Raatpiboon:
hair matrix cells are among the fastest-dividing cells in the body, so they are sensitive to shortages of amino acids, energy, oxygen, and enzyme cofactors such as iron and zinc.
In end-stage kidney disease, uremic toxins, chronic inflammation, and protein-energy wasting signal many follicles to leave the growth phase (anagen) and enter the resting phase (telogen) together.
These hairs stay put for about 3 months before falling, which is why shedding lags the trigger. Each hemodialysis session also removes amino acids and water-soluble vitamins; if intake is short, the body lacks the raw material for keratin.
Because the stem cells in the follicle bulge are not destroyed, follicles return to the growth phase and produce new hair once uremia falls, protein is adequate, and anemia improves.
Vitamin A accumulates in kidney patients because its carrier protein is normally cleared by the kidneys, and excess vitamin A itself can cause hair loss.
Academic references (E-E-A-T)
- Malkud S. Telogen Effluvium: A Review. J Clin Diagn Res 2015.
- Cutaneous manifestations in patients with end-stage renal disease on hemodialysis. 2023.
- Ikizler TA, et al. Amino acid and albumin losses during hemodialysis. Kidney Int 1994.
- Ikizler TA, et al. KDOQI Clinical Practice Guideline for Nutrition in CKD: 2020 Update. Am J Kidney Dis 2020.
- Tonelli M, et al. Trace elements in hemodialysis patients: a systematic review and meta-analysis. BMC Med 2009.
- Effect of Zinc Supplementation on Maintenance Hemodialysis Patients: A Systematic Review and Meta-Analysis of 15 Randomized Controlled Trials. 2017.
- Kalantar-Zadeh K, et al. Understanding sources of dietary phosphorus in the treatment of patients with chronic kidney disease. Clin J Am Soc Nephrol 2010.
- National Kidney Foundation. KDOQI Clinical Practice Guideline for Hemodialysis Adequacy: 2015 update. Am J Kidney Dis 2015.
- Agent specific effects of anticoagulant induced alopecia. Res Pract Thromb Haemost 2017.
- Li D, et al. Association of biotin ingestion with performance of hormone and nonhormone assays in healthy adults. JAMA 2017.
- Trost LB, et al. The diagnosis and treatment of iron deficiency and its potential relationship to hair loss. J Am Acad Dermatol 2006.
- Hamilton AJ, et al. Associations with Wellbeing and Medication Adherence in Young Adults Receiving Kidney Replacement Therapy. Clin J Am Soc Nephrol 2018.
- Tong A, et al. Experiences and perspectives of adolescents and young adults with advanced CKD. Am J Kidney Dis 2013.
Compiled and reviewed by Asst. Prof. Dr. Norawit Raatpiboon · Generic drug names only; no trade names.
Medical disclaimer
This article is general education based on research. It is not a diagnosis, not a prescription, and does not replace advice from your nephrologist and dietitian. Protein, fluid, potassium, and phosphorus needs differ for each dialysis patient according to blood results. Do not stop or change medicines yourself, and tell your kidney care team before taking any vitamin, supplement, or herb. If you have any symptom in the red-flag section, go to hospital immediately or call your local emergency number.