A touch-up is a small procedure performed to increase the density in some area or to reimplant some follicular units that may have been lost. A second transplant is a new complete hair transplant operation. Some patients need it when the bald area to be covered is very large and cannot be performed in a single procedure. Other patients request modification of the frontal hairline performed in the first surgery.
The touch-up is included as part of the transplant for those patients who need it, at the discretion of their specialist. On the contrary, the second transplant is a complete new intervention. In both cases, the second intervention (either retouching or new transplant) must be performed one year after the first one.