A circle of small bumps around the nipple with itching, the possible clinical causes are eczema, folliculitis and so on. 1. Eczema: This condition refers to a chronic inflammatory itchy skin disease, which is usually associated with food allergies, genetic factors, psychosocial factors and so on. Clinical manifestations include erythema, papules, blisters, etc., accompanied by itching, skin erosion after scratching and pain. 2. Folliculitis: this condition refers to a kind of inflammatory disease mainly involving hair follicles, which is usually associated with hair follicles being infected by bacteria and other pathogens. Clinical manifestations are red papules or mounds centered on hair follicles, which can be accompanied by different degrees of itching and pain. A circle of small bumps around the nipple with itching may also be other causes, it is recommended that the patient timely to the regular hospital dermatology consultation with a specialist for standardized diagnosis and treatment.