Anal herpes is an infection caused by the herpes virus that erupts as sores or blisters around the anus, the opening through which bowel movements pass. Syphilis , chancroid , and donovanosis are infections that can cause different types of lesions around the anus. The same virus that causes genital herpes can cause lesions in the genitals, anus, or perianus. But, not everyone with genital herpes has anal herpes.
Anal itching, medically known as pruritus ani, is a common dermatological problem affecting both men and women, although it is more common in men. It can occur at any age but seems to be most prevalent among people in the age bracket of 30 to 50 years. Pruritus ani is characterized by an excessively discomforting and often embarrassing itching or burning sensation of the skin around the anus rectal opening. This itch is sometimes so intense that it becomes almost impossible not to scratch.
The perianal skin tends to itch, which can result from numerous causes see Table: Some Causes of Pruritus Ani. This condition is also known as pruritus ani. Occasionally, the irritation is misinterpreted by the patient as pain, so other causes of perianal pain eg, abscess or cancer should be ruled out. Too little cleansing leaves irritating stool and sweat residue on the anal skin.