There are two main techniques used in hair transplantation. One method is FUE and the other technique is DHI. The choice of the method depends on the patient’s condition such as; extent of baldness, donor hair quantity as well as quality and the laxity of the scalp.
For example if the patient has severe hair loss i.e, a wide area that requires coverage, even if the patient wants to undergo a - one session hair transplant procedure - using the DHI method, he/she will most likely be a better candidate for the FUE technique. A FUE hair transplant can help to achieve more coverage in comparison to the DHI method. It will provide a permanent solution for treating moderate to severe hair loss. However, both techniques are designed to ensure patients experience the least amount of discomfort, leaving no external scars after the procedure. FUE method allows to transplant around 3000 to 4500 grafts in a single session, whereas in the DHI technique around 1500 to 2500 follicular unit grafts can be transplanted during a single session.
While the FUE method requires patients to have their heads completely shaved prior to the procedure, the DHI method only requires the donor area to be shaved. This provides a significant advantage for female patients. The DHI method requires more skill and experience in comparison to other hair transplant methods. This, in turn, requires the physicians and medical teams to be exposed to a long-term training period so as to specialize in utilizing this technique. For this reason, DHI hair transplantation is generally a more costly procedure when compared to other hair transplant methods.