The possible diagnoses are fibroadenoma and cystic hyperplasia of breast.

The low echo area needs attention.

If you can feel it, consider surgery.

If it cannot be reached, it can be taken out (punctured) for biopsy under the guidance of ultrasound.

I can't touch it, and I can check it regularly. No surgery for the time being. Need regular inspection.

I haven't seen a doctor personally, and my level is limited. Personal views are for reference only.

Liu Xiaofeng, a doctor from Nanjing Maternal and Child Health Hospital, solemnly reminded me that I couldn't fully understand the illness because I couldn't see the patient in person. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )