Dr. Zachary A. Gregg M.D.

What is colon cancer?Colon cancer is cancer of the large intestine, also known as the colon. If the last segment of the colon, the rectum, has a cancerous growth, it is known as rectal carcinoma. These two conditions are collectively referred to as colorectal cancer.Carcinoma of the colon is the...

Colonoscopy is a procedure that evokes mixed reactions amongst most adults. Most people don't look forward to the preparation for a colonoscopy, much less the procedure itself. But improvements in the procedure in recent years have led to most people not having a terrible experience. It is of...

Proctology, also known as colorectal surgery, is a field in medicine that focuses on the diagnosis and treatment of diseases or disorders of the colon, rectum, and anus. The one who specializes in proctology is called a proctologist or a colorectal surgeon. What is a proctologist?A proctologist is...

An anal fissure is a the tear or ulcer in the anal canal’s lining. The anal canal forms the end of the large bowel and lies between the rectum and the anus.Symptoms of Anal FissureThe following are the most prominent symptoms of anal fissures:...

An anal fissurectomy is a surgery that may be used for curing anal fissures. The procedure involves an incision in the sphincter muscles which control one's anal opening. It is normally the recommended surgery for treating tears or cracks that develop inside the distal canal (passageway) where waste...

What Occurs During The Different Stages of Prostate Cancer?Prostate cancer is an infection of the prostate which causes abnormal growth of cells on the prostate gland. Prostate cancer is known to inhabit the body of an individual for a long time before displaying any symptoms. During the first...