Why Is My Hair Falling Out So Much?

Quick answer: Heavy shedding is most often caused by telogen effluvium (a delayed reaction to illness, fever, stress, childbirth or crash dieting), pattern hair loss, nutritional issues such as low iron, thyroid problems or certain medicines; if it is sudden, patchy or lasts more than a few months, see a doctor.
- Normal shedding: Losing some hairs a day is normal.
- Delayed shedding: Shedding often starts 2–3 months after a trigger.
- Next steps: Hair loss causes guide.
Frequently asked questions
How many hairs a day is normal?
Commonly cited as up to around 100.
Will it grow back?
Shedding from a temporary trigger often settles.
When to see a doctor?
Sudden, patchy or persistent loss.
Folli-Doc at a glance
- Simulation & Stimulation: our newest technology, one session of 3–4 hours
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- Results can last 24–48 months
- FDA & NPRA certified; technology from Europe, used in 32 countries
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- Also offered: hair transplant and SMP
Talk to Folli-Doc
Free consultation & AI scan (worth RM199). 11am–7pm daily, by appointment only. Branches: KL Gateway Mall (HQ), Penang (Love Your Hair Studio) and Sibu.
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Related reading
- Which Vitamin or Mineral Deficiencies Can Cause Hair Loss?
- Can Stress Really Cause Hair Loss?
- How Long Does Postpartum Hair Loss Last?
- What Are the Early Signs of a Receding Hairline?
- Hair loss library: Causes of hair loss
Reviewed by the Folli-Doc team, led by Dr. Steven Goh (6 years’ experience in hair density treatment). This article is general information, not a medical diagnosis; for sudden, patchy or painful hair loss, see a doctor or dermatologist.