You need to contact your doctor for a follow up examination. In general transplanted hairs will fall out before new hairs grow out. If you are losing hair after 4 months, it may also be your non-transplanted hairs.
Delayed shock loss is not uncommon for the native hair left behind after a hair transplant. The best way to prevent this is with the drug finasteride (see below)
Thank you for the question. It is normal to have hair shedding as it gets into a cycle. This can take upto 9-12 months. You also can have normal hair loss for which propecia can help. It is best to follow up with your board certified surgeon. Good luck.
Brenyah12,Having a hair transplant does not alter the natural progression of Androgenetic hair loss (AGA). It is good that you have been on Propecia for 2 years, however, sometimes it is not enough to completely stop the hair loss. Recommend that you keep count of the total number of hairs loss per 24 hr period for one week. It is normal to shed between 50-100 hairs per day due to the normal cycling of hair growth on the scalp. Another possibility is possible shock loss from the surgical procedure. It is not possible for anybody to diagnose your condition without the benefit of an in person evaluation. Good luck.
Bernardino A. Arocha, MD