What causes anal fissures to itch?
Disease description:
Recently, I have been experiencing persistent itching around the anal area, which becomes more severe at night. Upon examination, I noticed a small crack or fissure near the anus, and there is sometimes bleeding and significant pain during bowel movements. May I ask, why can an anal fissure cause itching?
Doctor's answer (1)
Dr. Li Jingxiang
The main cause of itching associated with anal fissures is related to the local inflammatory response caused by the fissure. Additionally, secretions and excretions from the fissure can irritate the perianal skin, leading to itching. These secretions contain enzymatic substances and bacteria that can break down fatty acids on the skin surface, causing dryness, flaking, and subsequent itching.
Patients can use medications such as erythromycin ointment and hydrocortisone cream under a doctor's guidance to relieve the itching. At the same time, improving dietary habits, increasing dietary fiber intake, maintaining regular bowel movements, and reducing irritation to the anal fissure are recommended. Avoiding prolonged sitting can also help alleviate the itching sensation. Patients with severe or persistent symptoms should seek medical attention promptly.
