Blood blisters from nipple aspiration should usually not be punctured, and should be treated with localized warm compresses to make the blood blisters absorb on their own, or punctured and treated with medication if the blood blisters are too large in size. When a blood blister is aspirated from the nipple, the mother should let the baby stop breastfeeding on the affected side to prevent secondary infection of the nipple and bleeding symptoms. A breast pump should be used to remove the milk from the affected breast so that the milk can be secreted normally. If the area of the blood bubble is too large, it needs to be punctured to empty the blood in it and remove the broken epidermis. The main reason is that the baby sucks the milk in the wrong position, causing damage to the nipple. It is necessary to go to the hospital for treatment to prevent infection from occurring, and the medication usually used is erythromycin ointment, which is anti-inflammatory to the nipple. Mothers should pay attention to breast cleaning in daily life, avoid eating spicy and stimulating food, so as not to aggravate the condition, and when the symptoms worsen, they should consult a doctor in time.