The normal range for prolactin in your blood are:
- Males: 2 to 18 nanograms per milliliter (ng/mL)
- Nonpregnant females: 2 to 29 ng/mL.
- Pregnant females: 10 to 209 ng/mL
Anything above and below these given parameters is considered unusual and should immediately be consulted with the physician.
When your prolactin levels are high:
- If the score is beyond the typical range, it does not necessarily indicate that you have any disease. A test conducted immediately after finishing a meal or when a person is under a lot of pressure and stress may lead to an abnormally high prolactin level in the blood.
- Also, based on whose lab your physician chooses, what is deemed an average level may change.
- You may have prolactinoma if your levels are extremely high — up to 1,000 times the upper limit of what’s considered normal. It is normally treated with medication unless and until the tumour causes pressure effects on the surrounding brain and nerves. Your doctor may recommend that you obtain an MRI in such a scenario.
When your prolactin levels are low:
If your prolactin levels are lower than usual, it’s possible that your pituitary gland isn’t functioning properly. Hypopituitarism is the medical term for this condition and will warrant further investigations.