Mayo Clinic Health Manager
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By Mayo Clinic staffSigns and symptoms of breast cysts include:
- A smooth, easily movable round or oval breast lump with distinct edges
- Breast pain or tenderness in the area of the lump
- Increased lump size and tenderness just before your period
- Decreased lump size and resolution of other signs and symptoms after your period
Having one or many simple breast cysts doesn't increase your risk of breast cancer.