A high fever, dengue, COVID-19, surgery or a big stress can push many hairs into the resting phase at once, so heavy shedding often starts about two to three months later. This is called telogen effluvium; it usually settles on its own over several months once the trigger has passed, and gentle scalp care helps you through it.
Why the delay
Hairs switched to rest during the illness are shed only when the resting phase ends.
What helps
Eat enough protein, check iron if you are tired, handle hair gently, and avoid harsh treatments while shedding.
When to see a doctor
If shedding lasts beyond about six months, or you see bald patches, redness or pain.
Questions
Will it all grow back?
In most cases of telogen effluvium the hair regrows once the trigger has passed.
Should I cut my hair short?
Only if you prefer; it doesn't change shedding, but can make it less noticeable.
Studies mentioned
These studies looked at ingredients or general approaches. None of them tested our treatments or products, so they are background, not proof.
- Rebora A (2019). Telogen effluvium: a comprehensive review. Clin Cosmet Investig Dermatol 12:583-590.Review. Telogen effluvium is excessive shedding of telogen hairs, classically developing 3–4 months after a triggering event, and is often associated with androgenetic alopecia.PubMed 31686886doi:10.2147/CCID.S200471