Kidney Disease and Hair Loss

The hair follicle has a high turnover and depends on a steady supply of protein, iron, zinc, B vitamins and oxygen. In CKD several factors converge:

• ANAEMIA OF CKD — reduced erythropoietin and low iron shorten the anagen growth phase
• LOW ZINC AND VITAMIN D — reduce keratin synthesis
• INADEQUATE PROTEIN — over-restricted diets weaken the hair shaft
• URAEMIC TOXINS AND OXIDATIVE STRESS — affect the follicle directly
• SECONDARY HYPERPARATHYROIDISM — disturbs the follicular cycle
• SYSTEMIC ILLNESS, AKI, SURGERY, STARTING DIALYSIS — classic triggers of telogen effluvium
• MEDICATIONS — particularly after transplant

Hair loss is usually diffuse rather than patchy. It is rarely the first sign of kidney disease, but in someone already known to have CKD it often flags falling iron, worsening anaemia or a recent acute illness.

Telogen effluvium is a synchronised shift of hair follicles from the growing phase into the resting (telogen) phase. Two to four months after a trigger, those resting hairs shed together — often noticed as handfuls in the shower or on the pillow.

Common Triggers In CKD

• An AKI episode or hospital admission
• Starting dialysis (often improves after 6–12 months)
• A kidney transplant operation and the first months of immunosuppression
• A severe infection, fever or sepsis
• Major surgery (including vascular access creation)
• A flare of an underlying condition (lupus, vasculitis, IgA nephropathy)

What To Expect

• Diffuse thinning across the whole scalp
• Easy traction shedding when combing
• No scarring, no scalp pain, no redness
• Recovery over 6–12 months once the trigger settles

After Transplant

• Tacrolimus — most commonly implicated; dose-related
• Sirolimus (and everolimus) — recognised cause of diffuse alopecia
• Mycophenolate mofetil — occasional reports
• Ciclosporin — more often causes hypertrichosis than loss

In CKD And On Dialysis

• Heparin (including dialysis sessions) — telogen effluvium 2–4 months after starting
• ACE inhibitors and beta-blockers — uncommon but reported
• Allopurinol — occasional cases
• Some antibiotics used for recurrent infections

Never stop a prescribed medication on your own. If you suspect a drug-related cause, speak to your renal or transplant team — doses can often be adjusted or alternatives considered.

Routine Bloods Worth Reviewing

• Full blood count and ferritin / transferrin saturation
• Vitamin B12 and folate
• 25-OH vitamin D
• Thyroid function (TSH, free T4)
• Albumin and total protein
• Parathyroid hormone and corrected calcium (if not recent)

Diet Considerations In CKD

• Aim for the protein intake recommended for your CKD stage — too little is a common, modifiable cause of shedding
• Include zinc-containing foods within renal-diet limits (lean meats, eggs)
• Don't crash-diet — rapid weight loss is itself a trigger

A Note On Supplements

Many 'hair, skin and nails' or 'kidney hair growth' products contain added potassium, herbal blends, biotin mega-doses or high-dose vitamin A — none of which are appropriate in CKD, and some can interfere with thyroid blood tests or be unsafe in advanced kidney disease. Discuss any supplement with your renal team before starting.

General Care

• Use a mild, fragrance-free shampoo and a gentle conditioner
• Avoid tight ponytails, braids and extensions (traction alopecia)
• Limit bleaching, perming and high-heat styling during a shedding phase
• Pat hair dry rather than rubbing

Specific Options

• Topical minoxidil is generally considered safe in CKD but should be discussed with your clinician, especially on dialysis or after transplant
• Low-level laser devices are an option but evidence is modest
• Wigs and hair pieces are available on the NHS in some circumstances during heavy shedding

When To Seek A Further Review

• Patchy hair loss with smooth bald patches (alopecia areata)
• Painful, red or scaly scalp (scarring alopecia, infection)
• Sudden, very heavy shedding lasting more than 6 months
• Hair loss with new fatigue, weight change, breathlessness or menstrual change
• Hair changes after starting any new medication