What is a breast cyst?
While it may be scary to feel or learn you have a lump in your breast, it could just be a cyst. A breast cyst is a fluid-filled sac that forms in the duct system behind your nipple. A cyst is typically noncancerous and doesn’t require treatment unless it bothers you. Breast cysts are most common in women between 35 and 50 years old.
Types of breast cysts
Cysts can vary in size. Microcysts are so small they are undetectable. A macrocysts can feel like a grape or small water balloon. It is also very common to have multiple breast cysts at the same time.
There are three different types of breast cysts.
Look and feel like balls and are simply filled with fluid. Simple cysts are not cancerous and are not a cause for concern.
Have tiny chambers or pockets created by membranes. Experts say complicated cysts appear to have “debris” floating in the fluid. Complicated cysts are highly unlikely to be cancerous, although you may be advised to have a follow-up exam.
Have more solid membranes or walls in them and a higher chance of being cancerous. A biopsy is typically needed to determine if it is a cyst or cancer.