Hi, Anal skin tags, or rectal skin tags, are common and usually harmless growths that hang off the skin around the outside of the anus. The hormonal changes of pregnancy can also stimulate the growth of the skin tags, particularly during the second trimester of pregnancy. So, if its a skin tag you don't need to worry. Have you checked with your doctor to rule out warts? if not you need to consult him for evaluation. Regards.