Pituitary tumor symptoms can vary widely depending on the size of the tumor and how the growth is impacting your hormones. Sometimes, you may not experience any noticeable symptoms at all.
Adrenocorticotropic Hormone-Secreting (ACTH) Tumors
One type of pituitary tumor called adrenocorticotropic hormone-secreting (ACTH) tumors can cause Cushing’s disease. Symptoms of Cushing’s disease include:
- Acne
- Anxiety
- Bruising
- Depression
- Facial roundness
- Fat around the stomach or back
- High blood pressure
- High blood sugar
- Irritability
- Stretch marks
- Thinning arms or legs
- Weak bones
Growth Hormone-Secreting Tumors
Pituitary tumors that produce excessive acromegaly (a growth hormone) have unique signs and symptoms like:
- Body hair growth
- Coarse facial features
- Enlarged hands and feet
- Excessive sweating
- Heart problems
- High blood pressure
- Joint pain
- Misaligned teeth
Large Pituitary Tumors
Large pituitary tumors, sometimes called macroadenomas, can put pressure on the pituitary gland and other structures. This pressure can cause symptoms such as headache and vision loss. They can also cause hormonal deficiencies. Signs and symptoms of a deficiency include:
- Feeling cold
- Frequent urination
- Infrequent, or stopped, menstrual periods
- Nausea
- Sexual dysfunction
- Unintended weight loss or gain
- Vomiting
- Weakness
Prolactin-Secreting Hormones
Prolactinoma causes estrogen and testosterone levels to decrease.
For women, a pituitary tumor that’s causing an overproduction of prolactin may cause:
- Discharge from the breast
- Irregular menstrual cycles
- Lack of periods
Men experience different symptoms caused by prolactinoma, such as:
- Breast growth
- Erectile dysfunction
- Loss of sex drive
- Lowered sperm count
Thyroid-Stimulating Hormone-Secreting Tumors
A pituitary tumor can cause the thyroid to produce too much thyroxine. This effect can increase your body’s metabolism and cause symptoms such as:
- Excessive sweating
- Frequent bowel movements
- Irritability
- Nervousness
- Rapid or irregular heartbeat
- Weight loss