Order Prolactin Blood Test from JustLabs for $12 ($30 all-in for a single-test order: $12 + one $18 lab & physician order fee per order). Price includes lab processing at Quest Diagnostics. No insurance required.
Prolactin is a pituitary hormone primarily known for stimulating milk production. Elevated levels can cause infertility, irregular periods, and other hormonal symptoms.
Prolactin is a hormone produced by the pituitary gland at the base of the brain. While primarily known for stimulating breast milk production after childbirth, prolactin has many other functions in both men and women.
Elevated prolactin (hyperprolactinemia) is a common cause of infertility and menstrual irregularities in women, and can cause low testosterone and sexual dysfunction in men. Causes include pituitary tumors (usually benign prolactinomas), certain medications, hypothyroidism, and stress.
This test helps investigate unexplained infertility, irregular periods, inappropriate milk production (galactorrhea), low libido, or symptoms suggesting pituitary dysfunction.
Price
$12
All-in
$30
incl. $18 lab & physician fee
Results
1-2 business days
Fasting
8+ hrs
What's Measured
What This Test Measures
This test measures the concentration of prolactin hormone in your blood, reported in ng/mL. Levels naturally rise during pregnancy and breastfeeding.
Who Should Consider This Test
Women with irregular periods or infertility, anyone with unexplained milk production, men with low testosterone symptoms, people with suspected pituitary problems, those on medications that raise prolactin, and anyone with headaches plus vision changes.
Health Insights
Conditions Screened
Related Symptoms
When to Get Tested
Overnight fasting is preferred. Avoid testing right after eating. Ideally test in the morning, at least 2 hours after waking. Avoid breast stimulation before testing. Stress can temporarily elevate prolactin.
Fasting Required
This test requires fasting for accurate results. Please follow these instructions:
- Do not eat or drink anything except water for 8-12 hours before your blood draw.
- Water is allowed and encouraged - stay hydrated!
- Schedule your lab visit in the morning for convenience.
- Continue taking any prescribed medications unless advised otherwise by your doctor.
Understanding Your Results
Normal levels: Non-pregnant women: 2-29 ng/mL, Men: 2-18 ng/mL, Pregnant women: 10-209 ng/mL. Mildly elevated levels (30-200 ng/mL) often result from medications or stress. Very high levels (>200 ng/mL) suggest prolactinoma.
What to Expect
After placing your order, we send it straight to Quest Diagnostics — there is no consent form to sign and no partner email to wait for. Your requisition is usually ready to download from your dashboard within about an hour, and you can book your blood draw at any Quest Diagnostics location.
The blood draw typically takes just a few minutes. Results are usually available within 1-2 business days and will appear in your secure JustLabs dashboard.
Our results include reference ranges and easy-to-understand indicators showing whether your values are within normal limits.
How much does the Prolactin test cost?
The Prolactin test costs $12 at JustLabs — $30 all-in, since the $18 lab & physician order fee is charged once per order, however many tests you add. The price is fixed before your blood draw; no insurance or doctor visit needed.
| Option | Price | Order all-in | Notes |
|---|---|---|---|
| Prolactin at JustLabsDrawn at Quest Diagnostics | $12 | $30 | Includes the one $18 fee, charged once per order |
Paying with an HSA or FSA? See which lab tests qualify
Frequently Asked Questions
Hospital cash price: $120–$180
$12
+ $18 order fee · $30 all-inOne $18 fee per order covers your Quest blood draw and the independent physician order, however many tests you add.
- Results in 1-2 business days
- Fasting required (8 hours)
- Physician order included
No insurance needed · HSA/FSA eligible
- Physician-ordered
- CLIA-certified Quest lab
- Drawn at Quest Diagnostics
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