What triggers telogen effluvium?
Mason Cooper
Published Apr 09, 2026
Also asked, how long does it take for telogen effluvium to stop?
Because hairs that enter the telogen phase rest in place for two to four months before falling out, you may not notice any hair loss until two to four months after the event that caused the problem. Telogen effluvium rarely lasts longer than six months, although some cases last longer.
Likewise, how is telogen effluvium diagnosed? In active telogen effluvium, the gentle hair-pull test yields at least two hairs with each pull. If the patient's active shedding has ceased, the hair pull will be normal. If greater than 25% of extracted hairs are in telogen, the diagnosis of telogen effluvium is confirmed.
Thereof, can you go bald from telogen effluvium?
If you have telogen effluvium (hair loss), a lot of hairs fall out from your scalp. This is more than normal and most noticeable when you wash your hair. However, your scalp and the remaining hair look healthy. You will not have patches of hair loss (bald patches) but rather a generalised thinning.
Does telogen effluvium affect the whole body?
Telogen effluvium can affect hair on all parts of the body, but, generally, only loss of scalp hair is symptomatic. Understanding the pathophysiology of telogen effluvium requires knowledge of the hair growth cycle. In most people, 5-15% of the hair on the scalp is in telogen at any given time.