Colorectal surgery is a subspecialty of general surgery that specializes in the evaluation and treatment of anal problems and intestinal disorders. Colorectal surgeons see patients with conditions such as hemorrhoids, anal fissures, fecal incontinence, and rectal prolapse, as well as anal, rectal, and colon cancers. They also care for patients with diverticular disease of the colon, and they perform routine colonoscopies. In addition, they are specially trained to perform surgery on patients with Ulcerative Colitis and Crohn’s Disease. Colorectal surgeons complete a General Surgery residency and then receive subspecialty “fellowship” training in colon and rectal surgery. Our practice offers minimally invasive surgery for selected patients and innovative approaches for the treatment of anorectal problems. In addition, we have a comprehensive testing center for fecal incontinence. Drs. Wishnev and Zhang are the only physicians in Las Vegas who perform anorectal ultrasound, an important part of the evaluation of rectal cancer and fecal incontinence.