What Is A Pituitary Tumor?

Diagram of head showing pituitary gland


What is a pituitary tumor?

A pituitary tumor is an abnormal growth of cells in the pituitary gland, which is the main hormone-producing gland in the body.

About the size of a pea, the pituitary gland is located in the center of the brain behind the nose and eyes. Hormones are chemical substances the body produces that control and regulate certain cells or organs.

A tumor in the pituitary gland can disrupt the normal balance of hormones in the body and may cause a person to become sick.