Feline inflammation of anus
Young kittens are the most at risk of developing a protruding rectum. Kittens under six months are more susceptible to parasites, which can cause straining during defecation. Older cats may also develop rectal prolapse when suffering from injuries or rectal tumors. Chronic irritation of the rectum can weaken its state in the body. Intense straining in general can push the rectal tissue out of the body.