What Are the Symptoms of Perianal Eczema?
May 13, 2022
Source: Cainiu Health
Dr. Liu Wan
Introduction
Eczema primarily manifests as erythematous plaques around the anus and on the skin; in addition to erythema, small papules—approximately the size of rice grains—are also present. In severe cases, vesicles may develop. These vesicles often coalesce into confluent patches and commonly cause pruritus ani (anal itching). Patients with intense pruritus frequently scratch the perianal skin, leading to local skin breakdown and subsequent perianal infection. Chronic perianal eczema is more common than acute perianal eczema and is characterized by localized skin thickening.
The perianal skin is highly sensitive. Poor hygiene or prolonged exposure to a moist environment may lead to eczema, which commonly causes pruritus (itching) upon onset. To alleviate these symptoms, prompt treatment is essential. So, what are the clinical manifestations of perianal eczema?
What Are the Symptoms of Perianal Eczema?
Eczema primarily presents as erythematous (red) plaques around the anus. In addition to erythema, small papules—approximately the size of rice grains—may appear. In severe cases, vesicles (small fluid-filled blisters) develop. These vesicles may coalesce into larger confluent patches, frequently causing intense perianal pruritus. Patients with severe itching often scratch the perianal skin, resulting in local skin breakdown and secondary infection. Chronic perianal eczema is more common than acute eczema and is characterized by localized skin thickening, lichenification (a leathery, hyperpigmented texture), prominent skin fissures, oozing, severe pruritus, a protracted course, and a high tendency toward recurrence.
For perianal eczema, local treatments such as wet compresses with boric acid solution may be employed. For subacute and chronic perianal eczema, topical application of zinc oxide ointment is recommended. Concurrently, patients should avoid excessive scratching of the perianal skin, maintain dryness in the perianal area, take warm baths with potassium permanganate solution, and avoid spicy or irritating foods. In addition to local therapy, oral antihistamines may be prescribed.
Perianal eczema is most commonly caused by prolonged moisture in the perianal environment. Therefore, it is advisable to keep the perianal area dry to prevent moisture-related damage to the perianal skin. Daily perianal cleansing is essential to ensure hygiene and reduce the risk of bacterial infection, which may trigger or exacerbate perianal eczema. We hope this information proves helpful to you!
