Shock hair loss, also known as "telogen effluvium," is a temporary hair-shedding phenomenon that can occur after a follicular unit extraction (FUE) hair transplant surgery. It typically happens in the areas adjacent to the donor and recipient sites due to the trauma caused during the procedure. Although it can be alarming, shock hair loss is normal after a hair transplant, and most patients will see regrowth within several months. However, to reduce the risk of shock hair loss, patients can follow their surgeon's pre and post-operative instructions and avoid any physical activity that may cause stress on the scalp.