Causes of partial or total penile loss include partial or total penectomy, the surgical removal for a portion or all of the penis for the treatment of penile cancer (often squamous cell carcinoma of the penis). In addition there, can be penile loss as an infectious or ischemic (loss of blood flow) complication of penile surgery, which can be related to poor surgical technique by inexperienced surgeons. Moreover, there can be penile tissue loss from traumatic penile injuries.
In cases where the penis is severed with a sharp instrument such as a knife, and preserved, the penile can be re-attached surgically. When this is not an option, or then there is penile loss from other causes, the priority to to provide a patent urethral opening to allow the patient to urinate. When there is only partial penile loss with preservation of a stump, the patient can often effectively urinate while standing with the urethral opening placed at the tip of the remaining penis. When there is more complete loss, the urethral opening is often best created under the scrotum, a surgery called a perineal urethrostomy. The patient then must urinate while sitting, but this allows effective urination into the toilet.
One option to reconstruct a penis is called a phalloplasty, such as a forearm free flap phalloplasty. This is a major reconstructive surgery involving the use of forearm tissue that is transferred to the penile area, configured to be the shape of the penis, and re-attached using a microvascular surgery to re-establish blood flow and perhaps sensation. This can provide an appendage that may allow the patient to urinate while standing (with associated urethral reconstruction), and may provide the man the ability to have sexual penetration (with the insertion of a penile implant). However, there are significant limitations to this major surgery and patients considering this procedure must be carefully counselled. This surgery creates a phallus, not a “new penis” and the differences must be carefully explained before this surgery is considered.