- An incision is a cut made through the skin, fat, tissue and sometimes muscle to access the surgical site. It is deeper than it appears and can take months to fully heal. - Incision size depends on the surgery. Traditional open incisions are several inches long while minimally invasive incisions are under an inch with multiple small incisions. - Proper incision care includes gentle cleaning, avoiding harsh scrubbing, and letting scabs form without disruption as they aid healing. See a doctor if the incision starts opening more than expected.