Pituitary tumors are abnormal growths that develop in your pituitary gland. Some pituitary tumors result in too many of the hormones that regulate important functions of your body. Some pituitary tumors can cause your pituitary gland to produce lower levels of hormones.
Most pituitary tumors are noncancerous (benign) growths (adenomas). Pituitary tumors usually don't grow or spread extensively. However, they can put pressure on the pituitary gland and nearby structures, and affect your health.
There are various options for treating pituitary tumors, including removing the tumor, controlling its growth and managing your hormone levels with medications. Your doctor may recommend observation or a wait-and-see approach.