If it is really deep, it will undoubtedly lead to scarring. Once it grows, it will affect the normal development of the penis. Of course, it depends on the healing. The healing is smooth and the scar is small. If the wound is infected, it will be more serious. Now, the first task is to sew up the wound. After the wound has healed for a long time, penile plastic surgery will be performed to remove scars and obtain normal skin. In this way, the penis can develop normally without affecting fertility. Please consult your current attending physician for details.