Small white spots on breasts during breastfeeding can be caused by milk stagnation, cracked nipples and rashes, which can be dealt with by keeping the flow of milk open, using medication and sterilizing the breasts in a timely manner. 1. Milk stagnation: small white spots on breasts during breastfeeding may be caused by milk blockage at the opening of the milk ducts, you need to empty the breasts in a timely manner to maintain a smooth flow of milk, and at the same time pay attention to good nipple hygiene, every time before and after breastfeeding to clean the nipples with water to avoid bacterial infections. 2. Cracked breasts: this will form small ulcers on the surface of the nipple skin and localized pain. At this time, it is necessary to pay attention to change the bad breastfeeding way, the affected side of the suspension of breastfeeding, squeeze out the milk, keep the nipple skin dry, appropriate topical erythromycin ointment to promote healing. 3. Rash: The friction of clothing during breastfeeding and the stimulation of young children’s sucking may cause breast rash, which is manifested by the appearance of small white spots on the breast. You can use glycerin lotion and other drugs according to the doctor’s instructions, but also pay attention to keep the skin clean, wear cotton clothes, avoid stimulation. It is recommended that the medication be used according to the doctor’s instructions, do not self-medicate to avoid delaying the condition. Usually try not to use soap and other products, so as not to aggravate the disease.