What causes anal itching?

The causes of anal itching are complex and varied, with poor personal hygiene being one of the more common factors. When individuals neglect cleaning and caring for the anal area in daily life—such as failing to wash regularly or change their underwear—the moist environment around the anus can become a breeding ground for bacteria, potentially leading to anal itching. The presence of intestinal parasites is another potential cause. If parasites reside in the intestines for prolonged periods without being expelled, their activity may irritate the skin around the anus and trigger itching. Allergic reactions can also contribute to anal itching. In some individuals, consuming certain foods may provoke an allergic response to specific components, resulting in symptoms such as itching, redness, and swelling in the anal area. For individuals experiencing anal itching, in addition to maintaining good personal hygiene, it is important to consider possible parasitic infections and food allergies.