Which Means the Increase of Prolactin in Man

Prolactin is a hormone that despite being responsible for the production of breast milk in men, it has other functions, such as relaxing the body after reaching orgasm, for example.

The normal values of prolactin in man vary to take 2 to 17.7 ng/mL but can reach values much larger due to illness, use of medications that have this side effect, or due to a tumor in the brain.

Symptoms of increased prolactin in man

The output of milk by the man’s nipple, may be present in some cases, may be observed when the doctor presses the region darker breast. Other symptoms are:


  • Augmentation of the breasts;
  • Decreased sexual desire;
  • The difficulty to keep the penis erect, to maintain an intimate contact satisfactory;
  • Decreased number of sperm;
  • Reduction of the by the body;
  • Infertility;

Other signs and symptoms less common are headache, changes in vision due to atrophy of the optic nerve and paralysis of the pairs head, which are more common in men than in women, probably because in men the tumours are generally larger than in women.

Causes of increase of prolactin in man

Some examples of remedies that lead to increased prolactin in male are:

  • Anti-depressants: alprazolam, fluoxetine, paroxetine;
  • Remedies for epilepsy: haloperidol, risperidone, chlorpromazine;
  • Remedies for the stomach and nausea: cimetidine and ranitidine; metoclopramide, domperidone, and cisapride;
  • Remedies for high blood pressure: reserpine, verapamil, metildopa, atenolol.

In addition to the meds, the tumors of the head, brain or pituitary gland can also cause an increase in prolactin in the blood. Diseases such as sarcoidosis, tuberculosis, aneurysm, and radiation therapy in the head can also be involved, as well as renal failure, hepatic cirrhosis, and hypothyroidism.


Examination of prolactin for men

In men the values of the prolactin should be at a maximum of 20 ng/mL, and the higher this value, the greater the risk of a tumor called prolactinoma.

To observe this increase in the blood test the doctor may order imaging tests to better evaluate the gland. Exams may also be requested are the X-Ray of the head and Magnetic Resonance imaging.

Treatment to lower prolactin

The treatment is recommended to combat infertility, sexual problems, and strengthen the bones. For this you may need to take medications like Bromocriptine and Cabergoline (lisurida, pergolida, quinagolida).

The surgery is indicated to remove the tumor, when this is large or is increasing in size. Radiation therapy is not always indicated because the rate of success is not very high.


The examination should be repeated every 2 or 3 months in the first year of treatment, and then every 6 months or year-on-year, as the endocrinologist you prefer.

Which Means the Increase of Prolactin in Man 1

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