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Pituitary Tumors
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Endocrine System

Pituitary Tumors

The pituitary gland acts as the body's master control center, and while tumors here are common, they are often manageable and frequently curable.

Overview

Your pituitary gland is a pea-sized gland located at the base of your brain. It serves as the "master control gland," producing hormones that regulate growth and the functions of other glands throughout the body.

While pituitary tumors are common, they often do not cause health problems, and many people are unaware they have them. The most frequent type of tumor produces hormones, which can disrupt the body's hormonal balance and lead to endocrine diseases such as Cushing's syndrome and hyperthyroidism.

Symptoms

Common symptoms associated with pituitary tumors include:

  • Headaches
  • Vision problems
  • Nausea and vomiting
  • Problems caused by the production of too many hormones

Treatment & Management

Pituitary tumors are usually curable. Treatment often involves surgery to remove the tumor, though other options include medicines, radiation therapy, and chemotherapy.

Frequently Asked Questions

Many pituitary tumors are non-functioning and remain small, a condition often referred to as an incidentaloma. These tumors do not produce excess hormones and are too small to press on nearby structures like the optic nerves or brain tissue. They are frequently discovered accidentally during brain imaging performed for unrelated reasons, such as a headache or trauma. Because they do not disrupt hormonal balance or cause mass effect, they often require only periodic monitoring with MRI scans rather than immediate surgical intervention.
The most common visual symptom is bitemporal hemianopsia, which is the loss of peripheral vision in the outer half of both eyes. This occurs because the pituitary gland sits directly below the optic chiasm, where the optic nerves cross. As the tumor grows upward, it compresses the crossing nerve fibers, leading to a blind spot on the sides of the visual field. Patients may notice difficulty seeing objects in their peripheral vision, such as cars in the side mirrors or people walking beside them. Any sudden or progressive change in vision, especially peripheral loss, requires urgent evaluation to prevent permanent nerve damage.
Treatment is tailored to whether the tumor is functioning (producing hormones) or non-functioning. For tumors that secrete prolactin, medication such as dopamine agonists is often the first-line treatment and can shrink the tumor significantly without surgery. For tumors producing growth hormone or ACTH, surgery is usually the primary option to remove the source of excess hormone, often followed by medication or radiation if hormone levels remain elevated. Non-functioning tumors are typically treated with surgery if they are large enough to cause symptoms like headaches or vision loss, while smaller ones may be monitored.
Most patients are discharged from the hospital within two to three days after transsphenoidal surgery, which is the standard approach for pituitary tumors. Full recovery from the physical effects of the surgery, such as nasal congestion or fatigue, typically takes two to four weeks. However, long-term monitoring is essential because the pituitary gland regulates many critical body functions. Patients require regular blood tests to check hormone levels and periodic MRI scans to ensure the tumor has not recurred. Some patients may need lifelong hormone replacement therapy if the surgery or tumor affected the gland's ability to produce sufficient hormones.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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