Nipples appear small meatballs need to pay attention to the following possibilities: 1, nipple injury, if the nipple injury, such as bites, scratches, etc., the injury in the healing process will be granulation tissue proliferation, can form small meatballs, belong to the natural process of injury healing, if the obvious impact on the appearance of the operation can be repaired. 2, the infection, if the infection of HPV warts can be formed, the performance of the white small particles, may be single and multiple, need to go to the hospital dermatology line cryotherapy or laser excision. Adult women should often check their breasts, especially middle-aged women, once found breast problems, need to go to the hospital in time to avoid delay.