An anal fissure is a small tear or split in the lining of the anal canal. Anal fissures are common among infants, but they can occur at any age.Anal fissures are also common among women who have recently given birth and people who have inflammatory bowel disease.n anal fissure is a small tear or split in the lining of the anal canal. Anal fissures are common among infants, but they can occur at any age.
The cumulative number of estimated AIDS cases in the U.S. is estimated to be 1.8 million. Over 1.1 million people are estimated to be currently living with HIV in the U.S. About 50,000 people are infected with HIV in the U.S. each year, a number which has remained fairly steady over the last decade.
United States 1  : About 50,000 new HIV infections are reported in the U.S. each year. 2  More than 1.1 million people in the U.S. are living with HIV infection, and almost 1 in 6 (15.8%) are unaware of their infection. 2. 3  Since the beginning of the AIDS epidemic in the U.S., approximately 636,000 deaths have been reported.