Why Does a Girl, Almost 9 Years Old, Have a Painful Lump in One of Her Breasts?

A nearly 9-year-old girl has a lump and pain in one breast. The lump and pain may be caused by soft tissue inflammation or breast development. The treatment methods vary depending on the cause.

1. Breast Development: Girls usually enter puberty between 9 and 12 years old. Due to increased estrogen secretion, breast development, and breast hyperplasia, breast lumps may occur. The breasts on both sides are usually asymmetrical, and some girls may also experience mild pain. If the lump gradually disappears and the pain gradually eases, there is no need to worry as it is a normal physiological phenomenon.

2. Soft Tissue Inflammation: If there are symptoms such as redness, swelling, heat, and pain in the breast, it may be soft tissue inflammation, possibly caused by bacteria. You can take anti-inflammatory drugs such as cephalosporins, cefazolin sodium, and other medications to relieve pain. It is important to clean the breasts daily, pay attention to personal hygiene, and avoid exacerbating the inflammation. During puberty, girls should maintain a balanced diet and engage in appropriate exercise to alleviate discomfort caused by puberty.