Fibroadenoma is a lump composed of glandular or fibrous tissue with clearly defined edge in the breast. Fibroadenoma is also termed as breast mice or breast mouse for the fact that it is highly mobile in the breast and would often run away if an attempt is made to touch it. Though it is non-cancerous, a doctor may still recommend biopsy on spotting it.

There can be multiple fibroadenomas in the