Breast scabs may be related to breast milk stagnation, localized eczema, allergic dermatitis and other reasons. 1. Milk stagnation: if during breastfeeding, because of prolactin secretion is more, resulting in milk secretion becomes larger, will cause moisture around the nipple, not timely scrubbing will appear folliculitis, later will appear white spots, and then scabs. 2. Localized eczema: hygiene is not clean, local exudate is more, the mammary skin is in a moist state for a long time, repeated stimulation will form eczema, which will lead to localized slight scabs, accompanied by itching and other symptoms. 3. Allergic dermatitis: mostly seen in sensitive people, after exposure to adverse stimuli leading to skin allergic dermatitis, accidentally scratching the patient will appear localized obvious scabs. Breast scabs should also be considered tumor factors, such as Pai Jie’s disease, etc. It is recommended that when scabs occur, timely to the regular medical treatment, usually pay attention to breast hygiene, wear comfortable and breathable underwear.