In addition to childbirth, other forms of pregnancy termination, including miscarriages and abortions, can also result in telogen effluvium, if a high proportion of the women's hair follicles had begun to postpone entering the resting stage during the pregnancy. Most birth control pills work in part by adding hormones to fool a women's reproductive system into thinking it is already pregnant. The hormones added can affect hair growth. In some cases, discontinuation of birth control pills can trigger telogen effluvium, similar to that suffered after childbirth. Telogen effluvium also usually affects newly transplanted hair follicles in micrograft and minigraft procedures.
Surgery is a sudden shock to the individual follicles.
The newly transplanted follicles make a transition to the resting stage shortly after they are transplanted, and 3-4 months later begin to grow new hairs.