What causes itching outside the anus?

Anal itching is caused by external hemorrhoids. Due to the anal margin skin flap, it is difficult to wipe the anus after defecation. Pingsu consciously has a foreign body sensation in the anus. Due to the stimulation of fecal residue and secretions, it is often accompanied by anal skin itching and dampness.

External hemorrhoids refers to the occurrence below the anal dental line. It is caused by the expansion of varicose external venous plexus or the rupture of external veins of hemorrhoids. It is caused by repeated inflammation and infection of fibers. It is mainly due to swelling and burning pain. It is manifested as a localized mass on the anal margin, hard, smooth, bright and tender.

Pingsu should pay attention to keeping the anus clean. Daily use of warm saline to fumigate the anus can play an anti-inflammatory and anti-itch role, and can be combined with topical hemorrhoids ointment.