A lot of small brown moles with granularity near the breasts may be related to the level of hormones in the body, keratinization of sebaceous glands, filiform warts and so on. 1. Hormone levels in the body: As women age, hormone levels in the body change, which may lead to hyperpigmentation of the breast area, a normal physiological phenomenon. 2. Keratinization of sebaceous glands: It is also possible that the normal sebaceous glands around the breast or nipple are hyperplastic and keratinized, leading to this phenomenon. 3. Filiform warts: wart-like skin growths, normal skin color or brownish-gray, often caused by HPV infection, which need to be carefully identified. The fact that there are a lot of brown moles with granularity near the breast should also be considered for other reasons such as tumor factors, if there are more of them, it is recommended to consult a doctor in a timely manner to find out the cause of the disease and then to carry out the treatment.