What is the cause of perianal itching and moisture

Perianal itching and dampness is a common disease, which refers to the frequent appearance of dampness, redness, swelling and itching around the anus. It is not easy to cure, which brings unspeakable difficulties to patients. Some patients will inevitably feel depressed because of long-term unhealed mood, and it affects the patients' work and life. Let’s take a look at what causes itching and moisture in the anal area.

Causes of anal moisture:

1. Anal incontinence

Anal fistula and perianal abscess surgery can damage part of the anal sphincter and lead to incomplete incontinence. The patient cannot control loose stools, and loose stools and intestinal fluid often overflow from the anus and contaminate underwear, irritating the area around the anus and causing it to become wet and unclean.

2. Intestinal fluid overflow stimulation

Chronic rectal inflammation, anal sinusitis, prolapse of rectal mucosa or prolapse of large hemorrhoids, if not promptly reinserted, may be accompanied by the outflow of some intestinal fluid, repeatedly irritating the anus and causing anal moisture.

3. Inflammatory irritation in the anorectum and surrounding areas

Anal sinusitis, anal papillitis, perianal abscess, anal fistula, external hemorrhoid inflammation, ulcerative proctitis accompanied by rectal inflammatory exudate irritating the anus can also cause anal pain.

4. Perianal skin diseases

Skin diseases such as perianal eczema, anal erythrasma, and anal ringworm, in addition to local skin lesions, are often accompanied by moist and unclean anus due to long-term irritation of the perianal skin.

5. Psychological and neurological factors

Anal neurosis, etc.

6. Others

For unknown reasons, the rectal mucosa and anal glands secrete more alkaline fluid, which irritates the anal skin and causes moisture.