Hair Loss All at Once

Have you ever noticed changes in your hair? In fact, each hair on your body goes through three phases throughout its lifetime:

  • Anagen: active hair growth that can last anywhere from two to seven years

  • Catagen: a transition period that lasts two to three weeks

  • Telogen: a resting phase that can last two to three months; at the end the hair is shed and replaced by a new hair to start again

Most of the time, we notice hair growth because most of the hairs on our head are in the anagen phase. However, sometimes this cycle becomes disrupted and many more hairs enter the telogen phase early. Telogen effluvium is a type of hair loss characterized by increased hair fallout after a big life change, stressful event, or changes in the body’s health.

Telogen effluvium can be alarming because there is sudden increased hair shedding all over the scalp and without apparent cause. However, this condition almost always resolves on its own without any treatment! Immediately once the trigger for telogen effluvium is removed, all of the shedded hair will be replaced by new hairs after about two to three months (at the end of the telogen phase). Hair growth will resume as normal.

Although telogen effluvium requires no treatment, your dermatologist may wish to check your health to be sure there is no illness that could be causing hair loss. Please visit a doctor if you ever notice sudden changes in your body.