Hair

Hair Loss: 7 Warning Signs You Should See a Dermatologist

Dr. M. Selvakummar, M.D., D.D. · 1/15/2025 · 6 min read

Most people lose 50–100 hairs every day — that is part of the normal hair growth cycle. But certain patterns of loss point to a deeper problem and benefit enormously from early dermatological evaluation.

1. More than 150 hairs falling daily for over 6 weeks

Sudden increased shedding is often *telogen effluvium* triggered by illness, surgery, pregnancy or thyroid changes. Most cases resolve, but only after the trigger is identified.

2. Visible thinning at the crown or temples

This is classic *androgenetic alopecia* (male/female pattern hair loss). It is genetic but treatable — the earlier you start, the more hair you keep.

3. Round, smooth bald patches

This is *alopecia areata* — an autoimmune condition. It often responds well to early intralesional steroid therapy.

4. Itchy, flaky scalp with hair fall

Untreated seborrhoeic dermatitis or fungal infection can accelerate hair loss. A medicated shampoo regimen usually solves it.

5. Hair loss after pregnancy that lasts beyond 9 months

Postpartum shedding is normal up to 6 months. Beyond that, evaluate for iron deficiency or thyroid dysfunction.

6. Hair loss with weight changes, fatigue or menstrual irregularity

PCOS, thyroid disease and severe anaemia all cause hair loss. Blood work is essential.

7. Hair shaft breakage instead of root shedding

This usually means structural damage from over-styling, chemical treatments or heat. The hair growth itself is fine — the cuticle is failing.

If any of these apply, book a consultation. Trichoscopy, blood work and a personalised plan can stop and often reverse hair loss.

Frequently asked questions

Losing around 50–100 hairs per day is considered normal as part of the natural hair growth cycle. If you notice excessive shedding for several weeks, it may require evaluation.

You should consult a dermatologist if you notice sudden hair shedding, visible thinning, bald patches, scalp itching, or hair loss associated with fatigue, weight changes, or hormonal symptoms.

Sudden hair fall may occur due to stress, illness, surgery, pregnancy, thyroid disorders, nutritional deficiencies, or certain medications. A dermatologist can identify the underlying trigger.

Hair thinning at the crown or temples is commonly due to androgenetic alopecia (pattern hair loss). Early treatment can help slow progression and improve hair density.

Round, smooth bald patches are often caused by alopecia areata, an autoimmune condition that can respond well to early treatment.

Yes. Conditions such as seborrhoeic dermatitis and fungal scalp infections can contribute to hair fall if left untreated. Proper scalp treatment is important.

Postpartum hair shedding is common for several months after delivery. If it continues beyond 6–9 months, medical evaluation may be needed to rule out iron deficiency or thyroid problems.

Yes. Hormonal conditions such as PCOS and thyroid disorders can cause excessive hair fall, especially when associated with irregular periods, fatigue, or weight changes.

Hair breakage is usually caused by heat styling, chemical treatments, harsh hair products, or excessive mechanical damage rather than problems with hair growth itself.

A dermatologist may perform scalp examination, trichoscopy, and blood tests to check for nutritional deficiencies, thyroid disorders, hormonal imbalance, or other medical causes.

In many cases, early diagnosis and treatment can slow hair loss, improve scalp health, and stimulate regrowth depending on the cause.

Treatment options may include medications, medicated shampoos, PRP therapy, GFC treatment, nutritional correction, and customised dermatological care based on the diagnosis.