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Also reported in: mIU/L, mcg/L
Your prolactin is within the normal range for a non-pregnant individual. Prolactin regulates breast milk production and has other roles in immune regulation and reproductive health.
Very low prolactin suggests pituitary gland failure (hypopituitarism) — the pituitary is not producing hormones normally. In breastfeeding women, this would prevent milk production. In others, it may reflect broader pituitary hormone deficiency.
Seek medical evaluation for pituitary function. A full pituitary hormone panel (TSH (the signal hormone your brain sends to your thyroid), cortisol, GH, LH, FSH) is warranted.
Prolactin: {{value}} {{unit}} — very low (ref: {{low}}–{{high}})Very low prolactin is sometimes caused by dopamine-boosting medications or conditions that increase dopamine activity. In most non-breastfeeding individuals, very low prolactin is not clinically significant.
Discuss with your doctor, especially if you're on medications that affect dopamine (e.g., cabergoline) or have symptoms of pituitary dysfunction.
Prolactin: {{value}} {{unit}} — below reference range (ref: {{low}}–{{high}})Low-normal prolactin in non-pregnant individuals is generally not clinically significant.
No action needed. Discuss with your doctor if you are trying to breastfeed.
Prolactin: {{value}} {{unit}} — borderline lowYour prolactin is within the normal range for a non-pregnant individual. Prolactin regulates breast milk production and has other roles in immune regulation and reproductive health.
No action needed.
Prolactin: {{value}} {{unit}} — within reference rangeYour prolactin is in the normal midrange, appropriate for a non-pregnant individual.
No action needed.
Prolactin: {{value}} {{unit}} — optimalMildly elevated prolactin is very common and often caused by stress, vigorous exercise before the blood draw, hypothyroidism, or certain medications (antipsychotics, metoclopramide, SSRIs). It is frequently a false positive.
Retest under optimal conditions (fasting, without recent exercise, no stress). Check TSH (the signal hormone your brain sends to your thyroid). If consistently elevated, further evaluation is warranted.
Prolactin: {{value}} {{unit}} — borderline highElevated prolactin (hyperprolactinemia) in non-pregnant individuals may contribute to irregular or absent periods in women, low testosterone in men, galactorrhea (nipple discharge), and infertility. Causes include prolactinoma (benign pituitary tumor), medications (antipsychotics, metoclopramide), and hypothyroidism.
See your doctor for MRI of the pituitary gland and medication review. Prolactinomas are usually benign and treatable with dopamine agonist medication (cabergoline).
Prolactin: {{value}} {{unit}} — above reference range (ref: {{low}}–{{high}})Very high prolactin strongly suggests a macroprolactinoma — a larger pituitary adenoma that can cause headaches, visual field defects (from pressure on the optic nerve), and complete reproductive hormone shutdown.
Seek urgent medical and endocrinology care. Pituitary MRI and visual field testing are needed promptly. Treatment with cabergoline is often highly effective.
Prolactin: {{value}} {{unit}} — very high (ref: {{low}}–{{high}})Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.