Adult belly button inflammation can hang dermatology, can also hang general surgery, may be infectious inflammation or allergic inflammation. The navel area is a concave nest, some patients navel area localized sweat gland secretion, sweat gathered in the navel concave nest, it will lead to local skin itching. Or bathing navel area cleaning is not in place, can also lead to localized dirt gathering, due to localized dirt gathering can also lead to itchy skin. When itching scratching or rubbing the navel area of the skin, it is easy to lead to the navel area of the skin breakage, secondary infection, especially secondary bacterial infection, can be manifested as local bacterial infectious inflammation. Clinical manifestations of localized redness, swelling or erosion, oozing, etc., accompanied by pain, the patient in the navel area of acute bacterial infectious inflammation, you can see the general surgery, you can also see the dermatology. Some patients due to allergies, navel area in direct contact with the metal buckle of the belt or pants, patients are allergic to the synthetic gold of the metal buckle, and localized allergic inflammation. Localized allergic inflammation patients can show flushing, edema, or even erosion and oozing, accompanied by itching. Patients with localized allergic inflammation should see a dermatologist for routine anti-allergy treatment under the guidance of a dermatologist.