Can the entire bald area be grafted in one session?

Sometimes hair loss exceeds its limits and can be the reason for baldness. To cover baldness with the treatment, there are two methods i.e., Non-surgical treatment and another one is hair transplant surgery. Hair transplant is divided into two types FUT hair transplant and FUE hair transplant. In these procedures, no of grafts are used. The entire bald area can be grafted in one session depending on the bald spot, no. of grafts used to cover the scalp, density, etc.