Raised particles in the nipple ring may be caused by untimely cleaning, Montgomery’s nodules, eczema, pimples and so on. 1. Untimely cleaning: raised particles in the nipple ring may be caused by untimely cleaning, there are a large number of sebaceous glands or hair follicles around the mammary glands, when the local cleaning is not timely, it is easy to cause infections around the nipple, the hair follicles will be swollen and enlarged, and the local area will be obvious redness, swelling, pain and other symptoms. 2. Montgomery’s nodes: Montgomery’s nodes are large sebaceous glands around the nipple, mainly secrete sebum, the nipple, areola lubrication and protection of the role of the nipple, usually not obvious, will be in the female pregnant with the mammary glands of the enlargement of the gradual obvious, for the later breastfeeding in preparation for the normal phenomenon of redness, swelling, pain. 3. Eczema: If the body’s immune function is abnormal, the skin barrier function is impaired, it will make the microbial direct invasion, super-antigenic role of the induced immune response, which leads to the areola have raised particles. 4. Papules: when the skin is affected by a variety of factors such as infection, allergic reaction, autoimmune, etc., it will lead to the emergence of raised granules in the nipple circle, sometimes accompanied by itching, pain, fever and other uncomfortable symptoms. The raised particles in the nipple circle should also be considered breast tumors, breast inflammation and other factors, it is recommended to go to the regular hospital in a timely manner, under the diagnosis of the doctor, according to the patient’s specific condition, to take targeted treatment, in order to avoid adverse effects on the body.