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The resting phase of the hair cycle, lasting about 3 months, after which the old hair sheds and a new anagen hair grows in its place. Around 10-15% of scal
Key termsTelogen effluvium
The resting phase of the hair cycle, lasting about 3 months, after which the old hair sheds and a new anagen hair grows in its place. Around 10-15% of scalp hairs are normally in telogen — losing 50-100 a day is normal.
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Not medical advice. General education only; it does not replace diagnosis or treatment by a licensed professional. Consult a board-certified dermatologist before starting, stopping or changing any treatment.
⚠️ When to see a doctor — don’t self-treat
- Sudden patchy or circular bald spots
- Redness, scaling, pus, pain or itch (possible scarring alopecia — treat urgently)
- Broken hairs or rapid loss
- Loss with body-wide signs (weight loss, fatigue, cycle changes, acne, extra hair)
- Loss right after a new medication
- Any hair loss in a child