The hard lumps in the breast nucleus of a 7-year-old girl may be physiological causes, or pathological causes, such as breast lumps, you can hang up with the pediatric endocrinology or breast department.
1. Physiological reasons: there may be early development, although most girls start breast development at the age of 10 to 12 years, some girls develop earlier, it may be related to genetic factors, for example, parents develop earlier, it may also be caused by exogenous estrogen intake, for example, eating too much estrogen-containing food, which can easily lead to precocious puberty, causing premature development.
2. Pathological causes: may be breast inflammation or tumor caused by lumps, touch will be clearly felt, if the inflammation is caused by, will press the pain is obvious.
These are pediatric endocrinology or breast problems, you can go to these two departments to register. It is recommended to bring your child to the hospital in time to identify the cause and then target treatment or therapy.