Why Do People Develop Perianal Eczema?

The causes of perianal eczema are complex and varied, mainly including: 1. Allergic reaction: This is the primary cause, involving both internal and external factors, such as focus infection, allergenic foods, medications, or contact with certain allergenic substances. 2. Disease-related factors: During the course of conditions such as endocrine disorders, malnutrition, digestive dysfunction, and intestinal parasitic diseases, patients may develop increased sensitivity to certain allergens, which can easily trigger perianal eczema. 3. Local lesions: Chronic inflammatory stimulation from conditions such as hemorrhoids, anal fistula, anal fissure, and anal incontinence may also induce perianal eczema. 4. Irritating factors: Direct irritation of the anal area by substances such as iodine tincture, alcohol, strong acids, or strong alkalis can trigger eczema. 5. Neurological dysfunction and endocrine disorders: Excessive fatigue, mental stress, depression, insomnia, and other factors may also contribute to the development of perianal eczema.