Grafts need to be properly cared for immediately after being taken from the donor strip, if not they could which will cause the grafts not to grow. There are numerous reasons that can contribute to poor hair growth after a hair transplant however it is very unpredictable and has been reported with every technique utilized in hair transplant surgery. One belief is the grafts planted are dying before they are placed into the recipient site. The reason is, during the hair restoration process the grafts that are left out of the holding solution for a long period, or kept under the microscope for an extended period of time and dry out. It is also thought that grafts can be injured in the dissection processes or can be traumatized while they are being placed. If the grafts are grasped too tightly or manipulated too much, the injury maybe to server and the graft will die, which in this cause the hair does not grow. Properly hydrated, grafts will survive outside the body for many hours.