Male inverted areola redness, swelling and pain may be caused by trauma, nipple inflammation, mastitis and other reasons. 1. Trauma: If the patient suffers from trauma, it may also cause the situation of inverted areola redness, swelling and pain, such as traumatic blows and collisions, which may cause irritation to the areola, thus causing a series of symptoms. 2. Nipple inflammation: male inverted areola redness, swelling and pain may also be caused by nipple inflammation, the disease is usually due to nipple friction and stimulation, not pay attention to the hygiene reasons for the nipple rupture, and thus by the bacterial infection, resulting in the discomfort of the areola. 3. Mastitis: Mastitis is generally due to the accumulation of fatty material in the milk ducts, which causes irritation and immune response around the ducts, leading to plasma cell infiltration, resulting in symptoms of redness, swelling and pain in the inverted areola. At the same time, periareolar skin diseases can also present similar symptoms and need to be carefully identified. It is recommended that the patient should go to the hospital to find out the cause of the areola discomfort and standardize the treatment under the guidance of the doctor.