There are a lot of small particles in the nipple position, which is considered to be Montgomery’s nodes, which belong to the nipple, the large sebaceous glands around the areola, whose main function is to secrete sebum, and some of them can secrete milk during breastfeeding. Under normal circumstances, Montgomery’s nodes are not obvious, only after a woman’s pregnancy will obviously increase, increase in size, for the late breastfeeding to make adequate preparation, usually do a good job of local cleanliness and hygiene, Montgomery’s nodes are normal tissues, there is no uncomfortable symptoms, there is no need for treatment. Due to wearing new underwear or eating special food, it can lead to skin allergies, manifested as skin rashes, small particles around the nipple can be relieved by oral anti-allergy drugs. Prolonged stimulation of the nipple can lead to eczema, in addition to skin rashes, local itching discomfort, try to go to the hospital for examination before diagnosis.