One popular technique is Follicular Unit Transplantation (FUT). In FUT, a strip of hair-bearing skin is removed from the back of the head, and follicles are dissected under a microscope before being transplanted to the balding area. It's suitable for those with extensive hair loss. However, it leaves a linear scar at the donor site, which might be a concern for some patients. For example, if a patient has significant baldness at the crown, FUT can provide a large number of grafts to cover the area effectively.

Follicular Unit Extraction (FUE) is another option. It involves extracting individual hair follicles directly from the donor area using a micro-punch tool. This method leaves tiny dot-like scars that are less noticeable. It's a more time-consuming process but offers a quicker recovery and less discomfort. It's preferred by patients who want to keep their hair short and don't want a visible scar. It's suitable for smaller areas of hair loss or those who need touch-ups.

Direct Hair Implantation (DHI) is a relatively new technique. It combines the extraction and implantation process in one step, minimizing the time follicles are out of the body. The surgeon uses a specialized implanter pen to place the follicles directly into the recipient site. This technique can result in higher survival rates of the transplanted follicles and may lead to a more natural look. It's becoming popular for its precision and reduced trauma to the scalp.