Knowledge Hub

Hair fall: finding the cause before paying for the cure

Diagnose the cause of hair fall and choose a treatment stage-appropriately

3 min read Updated 20 Jul 2026 Reviewed by Sumaiya
Quick summary
  • Pattern tells you the category; blood work confirms the correctable part.
  • Early treatment protects existing follicles — nothing regrows a scarred one.
  • Nutrition and hormones must be addressed alongside any procedure.

Read the pattern first

Diffuse shedding from all over, especially with a recent illness, delivery, surgery or rapid weight loss, points to telogen effluvium — usually self-limiting once the trigger resolves. Progressive thinning at the temples, crown or a widening midline part points to androgenetic pattern loss, which is chronic and needs sustained treatment. Discrete smooth patches need medical assessment, not a salon treatment.

Genetic
Androgenetic pattern

Gradual thinning at the temples, crown or midline part. Responds best to early, sustained treatment.

Hormonal
Thyroid, PCOS, postpartum

Diffuse shedding that follows a hormonal event by two to three months.

Nutritional
Iron, ferritin, protein, vitamin D, B12

Very common in Indian diets, especially in menstruating women and vegetarians.

Scalp
Seborrheic dermatitis, folliculitis

Itch, flaking or tenderness alongside shedding. Treat the scalp before chasing regrowth.

Lifestyle
Crash diets, stress, sleep debt

Telogen effluvium after illness, surgery or rapid weight loss. Usually reversible.

Most Indian hair-fall cases have two or three overlapping causes, not one.

The tests worth doing before spending anything

  • Complete blood count and ferritin — low stored iron is the most frequently missed cause in women
  • Thyroid profile (TSH, and free T4 where indicated)
  • Vitamin D and B12 — widely low in Indian adults, especially vegetarians
  • Blood sugar and, where cycles are irregular, a PCOS-directed hormonal panel
A ten-minute prep at home makes the consultation far more accurate.

Treatment routes, honestly compared

Daily topical therapy is the foundation for pattern loss and only holds while it continues. PRP adds concentrated growth factors and can accelerate response in early to moderate thinning across three to four monthly sessions. Nutritional correction addresses the reversible portion and is often the cheapest meaningful intervention. Where the scalp is smooth and shiny with no visible follicles, none of these will regrow hair — that is a transplant conversation.

  1. Session 1
    Baseline

    Photos, scalp assessment and blood work review. Mild tenderness for a day.

  2. Month 1–3
    Monthly sessions

    Three to four sessions spaced four weeks apart. Shedding may briefly increase.

  3. Month 3
    First review

    Compare standardised photos. Reduced shedding usually precedes visible density.

  4. Month 4–6
    Density change

    Finer hairs thicken. Nutrition and any hormonal driver must be addressed in parallel.

  5. Month 6+
    Maintenance

    Top-ups every three to six months if the response justifies continuing.

PRP is a series, not an event — the first honest checkpoint is around month three.

What a fair timeline looks like

Expect reduced shedding at eight to twelve weeks, finer regrowth at three to four months, and thickening of that regrowth by six. Standardised photographs — same light, same parting, same angle — are the only reliable measure. Memory is a poor instrument here in both directions.

Prevention and maintenance
  • Adequate protein daily — most Indian diets fall short
  • Correct iron and vitamin D on evidence, not guesswork
  • Avoid tight ponytails, braids and repeated chemical straightening
  • Wash frequently enough to keep the scalp clean in humidity

Myths vs facts

Myth: Wearing caps causes baldness.
Tight traction over years can, but ordinary cap use does not.
Myth: Hair fall in your twenties cannot be treated.
Early-stage thinning is the most treatable stage there is.

Frequently asked questions

Should I do PRP or fix nutrition first?+

Both, in parallel. PRP without correcting low ferritin or an untreated thyroid usually underperforms.

Is hair fall after COVID or dengue permanent?+

Almost never. Post-illness telogen effluvium typically recovers over six to nine months with adequate nutrition.

Can stress alone cause hair fall?+

Sustained stress can trigger telogen effluvium, and it commonly accelerates an underlying pattern loss that was already present.

Do onion juice and home oils regrow hair?+

They may reduce breakage and improve scalp comfort. They do not reverse androgenetic thinning or replace treating a deficiency.

Key takeaways

What to remember
  • Pattern plus blood work identifies the cause in most cases
  • Treat early — protecting follicles is easier than regrowing them
  • Photograph monthly under identical conditions
  • No treatment regrows hair from scarred, follicle-free scalp

References

  • Iron status and hair loss in women — clinical literature
  • Nayami Cosmyc medical disclaimer
  • Indian Association of Dermatologists, Venereologists and Leprologists — patient guidance
Written and reviewed by
Sumaiya
Cosmetologist • Clinical Nutritionist • Skincare Formulator • Trichologist • Master Diploma in Cupping Therapy (M.D. Cup)

Sumaiya is the founder of Nayami Cosmyc in Mumbai, where she runs both the clinic and the academy. She works across skin, hair, hijama and clinical nutrition, and writes the Knowledge Hub so patients can understand a treatment properly before they ever book one.

Author profile and articles
If you want professional treatment

Readers who have finished this guide and want hair fall assessed in person can read about the related services at Nayami Cosmyc. There is no obligation to book — the guide above stands on its own.

Still unsure what applies to you?

A short assessment is usually faster than another month of reading. Kurla, Mumbai — online consultations available.