Treating Acromegaly With Surgery, Medicines or Radiotherapy

Have your rings stopped fitting, or your shoe size crept up over the years? Those quiet changes are often what finally brings someone to an endocrinologist with acromegaly. Treatment has two goals: bring down the excess growth hormone, which usually comes from a benign pituitary tumor, and prevent or improve the health problems that follow.

That may mean surgery, medication, radiotherapy, or a combination of these. Long-term follow-up with a specialist matters just as much as the first step.

Overview: how acromegaly treatment works

Acromegaly treatment works by lowering the body’s exposure to excess growth hormone and insulin-like growth factor 1 (IGF-1). In most people, the source is a noncancerous growth in the pituitary gland, called a pituitary adenoma. The best approach depends on the tumor’s size and location, hormone test results, symptoms, other health conditions and personal treatment goals.

For a removable tumor, surgery is commonly the first option because it can reduce hormone levels quickly and relieve pressure on nearby structures, including the optic nerves. If hormone levels remain high after surgery, or if surgery is not advisable, doctors may use medicines and sometimes radiotherapy. Care is usually coordinated by endocrinology, neurosurgery, radiology and other specialists as needed.

Acromegaly develops gradually, and changes such as larger hands or feet, facial changes, sweating, headaches, joint pain, sleep apnea, high blood pressure and diabetes may not improve at the same rate. Treatment can stop further progression and improve many health effects, but some long-standing physical changes may be permanent.

Who may be a candidate for surgery, medication or radiotherapy?

People with confirmed acromegaly should be assessed by an endocrinologist and a pituitary-focused multidisciplinary team. Evaluation considers the amount of hormone excess, the tumor’s relationship to the optic nerves and surrounding blood vessels, vision changes, heart health, blood sugar control, sleep apnea and whether the tumor can be reached safely through surgery.

Surgery is often recommended first for a tumor that is causing visual symptoms, is pressing on nearby structures, or appears likely to be removed with a reasonable chance of biochemical control. Medication may be used before surgery in selected situations, after surgery when hormone levels remain elevated, or as primary treatment when an operation carries too much risk or is not preferred.

Radiotherapy is generally reserved for persistent disease when surgery and medication have not achieved adequate control, or when medication is unsuitable. Because it can gradually reduce pituitary function, people receiving radiotherapy need long-term hormone monitoring and may eventually require hormone replacement.

Acromegaly surgery: what happens step by step

The most common operation is transsphenoidal pituitary surgery. Rather than opening the skull, the surgeon usually reaches the pituitary gland through the nostril and sphenoid sinus, using an endoscope or microscope. This approach is performed under general anesthesia and is designed to remove as much of the pituitary tumor as possible while protecting normal pituitary tissue and nearby structures.

Before surgery, patients commonly have blood tests, pituitary hormone testing, an MRI scan and an eye examination if the tumor is near the optic pathways. The care team also reviews medicines, including drugs that affect bleeding risk, and checks for health issues such as diabetes, hypertension and sleep apnea that may need additional planning around anesthesia.

After the procedure, the team monitors fluid balance, sodium levels, vision, headaches and pituitary hormone function. A follow-up MRI and hormone testing are scheduled after recovery to assess whether treatment has controlled the disease. When further care is needed, it may include medication, repeat surgery in selected cases, or radiotherapy.

If surgery is on the table for you, it is worth having that conversation with a neurosurgeon who does endoscopic skull-base operations regularly.

Recovery timeline, benefits and possible risks

Hospital stay after transsphenoidal surgery is often short, although the exact timeline varies with the size of the tumor, overall health and postoperative findings. Nasal congestion, mild fatigue and headache can occur during the early recovery period. Patients are typically advised to avoid heavy lifting, straining and forceful nose blowing for a period recommended by their surgical team.

Hormone testing is not limited to the first days after surgery. IGF-1 can take time to settle, so endocrinologists repeat blood tests over the following weeks and months. Improvements in sweating, soft-tissue swelling, headaches and blood pressure may begin earlier, while joint symptoms, sleep apnea and metabolic concerns may require separate ongoing care.

Potential benefits include lower growth hormone and IGF-1 levels, relief of tumor pressure, improvement in symptoms and reduced risk from untreated hormone excess. Possible surgical risks include bleeding, infection, cerebrospinal fluid leakage, changes in vision, temporary or permanent pituitary hormone deficiencies, and disturbances in water balance. These complications are uncommon, but your surgeon should still go through each one with you before you consent.

Medication and radiotherapy options

Several medicines can help control acromegaly. Somatostatin receptor ligands reduce growth hormone release in many patients and may also shrink some tumors. Growth hormone receptor antagonists lower IGF-1 by blocking growth hormone action in the body. Dopamine agonists can be helpful in selected people, particularly when hormone elevation is mild or alongside other therapies.

Choice of medicine depends on treatment goals, tumor characteristics, laboratory results, other medical conditions, route of administration and potential adverse effects. Monitoring may include IGF-1 testing, blood sugar and liver tests where appropriate, imaging, and review of symptoms. Medication is often long-term, and treatment may be adjusted as response changes.

Radiotherapy uses focused radiation to treat remaining pituitary tumor tissue. Its hormone-lowering effect is gradual and may take years, so medication may be continued while waiting for its full benefit. Conventional fractionated radiotherapy and stereotactic techniques may be considered according to the tumor’s position and distance from sensitive structures such as the optic nerves.

Because acromegaly usually comes from a pituitary adenoma, repeat scans are how your doctors check whether any tumor tissue is left behind or has come back.

What is the success rate of acromegaly treatment?

No single number can tell you how well treatment will work, because every case is different. The likelihood of controlling hormone levels depends strongly on tumor size, how far the tumor extends beyond the pituitary gland, the starting growth hormone level, whether the tumor can be completely removed, and the expertise of the treating center.

Surgery is more likely to achieve biochemical remission for a small, well-contained tumor than for a larger tumor that has grown into nearby areas. Even when surgery does not completely normalize hormone levels, it can still reduce tumor size and hormone production, making medication or radiotherapy more effective.

Doctors define treatment success using clinical improvement together with normal or appropriately controlled IGF-1 and growth hormone results. Acromegaly can come back or stay quietly active after a good initial response, so you need lifelong endocrine follow-up. Feeling well is not proof on its own.

How fast does acromegaly progress?

Acromegaly usually progresses slowly over years. The changes come on so gradually that many people are diagnosed years after they began. The speed of progression varies between individuals and cannot be predicted precisely from symptoms alone.

Without control of growth hormone excess, changes in soft tissues and bones may continue, while risks such as high blood pressure, heart disease, diabetes, sleep apnea and joint problems may increase. A growing pituitary tumor can also cause headaches or affect vision if it presses on the optic pathways.

Once effective treatment is started, further hormone-driven progression can usually be stopped. Some changes, especially swelling and metabolic effects, may improve, while long-established bone enlargement or joint damage may not fully reverse.

Can you recover from acromegaly, and what is life expectancy?

Many people can achieve remission or long-term biochemical control of acromegaly. A person may be considered in remission when hormone measurements remain in the target range without ongoing acromegaly-specific medication after successful treatment. Others achieve good long-term control with medication, radiotherapy, or combined care.

Recovery does not always mean that every previous symptom or physical change disappears. Joint damage, facial bone changes and enlarged hands or feet may persist, while fatigue, sleep problems, heart health and emotional wellbeing can need continued support. Treating associated conditions remains an important part of recovery.

Untreated acromegaly can reduce life expectancy because persistent hormone excess affects the heart, blood vessels, metabolism and breathing during sleep. However, when growth hormone and IGF-1 are effectively controlled and associated conditions are managed, life expectancy can be close to that of people without acromegaly. Regular follow-up supports this outcome by detecting residual disease, recurrence and treatment-related hormone deficiencies early.

When to seek medical care

Medical assessment is important for people with progressively larger rings, shoes or gloves; changes in facial appearance; persistent headaches; excessive sweating; deepening of the voice; tingling in the hands; new snoring or daytime sleepiness; or unexplained changes in blood pressure or blood sugar. These symptoms have many possible causes, but an endocrinologist can determine whether hormone testing is appropriate.

Urgent medical care is needed for sudden severe headache, vomiting, fainting, confusion, new double vision, or sudden loss or worsening of vision. These can signal an urgent pituitary problem. Do not wait for your next scheduled appointment.

People already receiving acromegaly treatment should keep scheduled endocrine appointments and report new symptoms, changes in vision, unusual thirst or urination, or concerns about treatment side effects. At Acıbadem Health Point, our specialist teams and JCI-accredited hospitals care for international patients with pituitary conditions.

Frequently asked questions