There are various types of tumors that can develop in the anus or around it. The skin around the anal area is called perianal area. This is the area where normally tumors develop that is related to the skin and not anal cancers. These non-cancerous tumors are called benign. These tumors are not that severe and they tend to spread in the areas around the anus. Sometimes these tumors develop into cancers if they are not cured. Cancerous cells grow slowly and these conditions are called the pre-cancerous conditions. These abnormal growths vary and changes occur in the skin cells. Eventually they become very fatal in the end and develop into cancer.

·          Polyps: Polyps are small, bumpy, or mushroom-like growths that develop in the mucosa or just under it. There are several kinds, depending on their cause and location.

·          Inflammatory: polyps arise because of inflammation from injury or infection.

·          Lymphoid: polyps develop in lymph tissue (part of the immune system). Small nodules of lymph tissue are normally present under the anal inner lining.

·          Skin: tags are benign growths of connective tissue that are covered by a layer of squamous cells. Skin tags are also called fibroepithelial polyps.

Condylomas:

Condylomas (also called warts) are growths that occur just outside the anus and in the lower anal canal below the dentate line. Occasionally condylomas can be found just above the dentate line. They are caused by infection with a human papilloma virus (HPV). People who have had condylomas are more likely to develop anal cancer (see next section, “Potentially Pre-cancerous Anal Conditions.”).

Other tumors: In rare cases, benign tumors can grow in other tissues of the anus. These include:

• adnexal tumors : usually benign growths that start in hair follicles or sweat glands of the skin just outside of the anus. These tumors stay in the perianal skin area and do not grow into the anal region. 

• leiomyomas – develop from smooth muscle cells 

• granular cell tumors –develop from nerve cells and are composed of cells that contain lots of tiny spots (granules)

• hemangiomas –start in the lining cells of blood vessels 

• lipomas - start from fat cells

•  schwannomas - develop from cells that cover nerves

Eventually they become very critical in the end and develop into cancer.These non-cancerous tumors appear if you are not careful about the proper cleanliness of the anal area. Food containing germs and virus can accumulate in the anal area and then the skin surrounding the anus gets swelled and there can also be wart development there. Anal tumors are agitating and they hinder a comfortable and smooth flow of excretion. Healthy diet and cleanliness are two key factors of avoiding anal tumors or any other type of cancer for that matter.

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