Stomal construction and reconstruction.

Urinary diversion plays an important role in the therapeutic repertoire of urologists. The stoma is often the weak link of any diversionary procedure. Some of the more common stomal problems include peristomal dermatitis, stomal stenosis, parastomal hernias, malposition, prolapse, and retraction. Depending on the nature and severity of the problem, it may be treated by local wound care, urinary appliance adjustment, dilatation, or surgical intervention. Careful site selection and stomal creation will keep stomal problems to a minimum.