--- title: Prolactin Test type: biomarker url: "https://www.test-well.com/biomarkers/prolactin" also_known_as: - prolactin category: Hormones units: - ng/mL order_price_usd: 39.99 order_item: Prolactin order_url: "https://www.test-well.com/tests/prolactin" reviewed_at: 2026-09-05 --- # Prolactin > Prolactin is measured with a standard blood draw; no fasting is needed. A typical reference range is 4.00 – 15.2 ng/mL (male, age 18+; more bands below). At TestWell it's $39.99 all-in as Prolactin, results in 2–4 business days, drawn at Quest or Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis. Also known as: prolactin. ## Key facts | Fact | Value | | --- | --- | | Units | ng/mL | | Sample | Blood draw | | Fasting | Not required | | Results | 2–4 business days | | Price | $39.99 | | Labs | Quest or Labcorp · BioReference in NY/NJ | ## What does Prolactin measure? A pituitary hormone primarily involved in milk production. Also affects menstrual function and fertility. ## What is the normal range for Prolactin? | Population | Reference range | | --- | --- | | Male, age 18+ | 4.00 – 15.2 ng/mL | | Female, age 18+ | 4.80 – 23.3 ng/mL | Reference intervals differ slightly between labs; the range printed on your report is the one to interpret against. Ranges are usually set so 95% of healthy people fall inside them. ## What does a high Prolactin mean? Can reflect pituitary issues, certain medications, hypothyroidism, or stress. May affect fertility and cycles. ## How do you get tested for Prolactin? | Order | Type | Price | Includes | | --- | --- | --- | --- | | [Prolactin](https://www.test-well.com/tests/prolactin) | Single test | $39.99 | This marker | | [Erectile Dysfunction Panel](https://www.test-well.com/tests/erectile-dysfunction-panel) | Panel | $114.99 | 7 tests | | [Men's Hormone Panel](https://www.test-well.com/tests/mens-hormone-panel) | Panel | $199.99 | 7 tests | | [TRT Starting Panel](https://www.test-well.com/tests/trt-starting-panel) | Panel | $229.99 | 14 tests | | [Women's Hormone Panel](https://www.test-well.com/tests/womens-hormone-panel) | Panel | $239.99 | 11 tests | ## Quest vs Labcorp vs BioReference | Lab | Available | Price | Notes | | --- | --- | --- | --- | | Quest Diagnostics | Yes | $39.99 | Choose Quest at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. | | Labcorp | Yes | $43.99 | Choose Labcorp at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. | | BioReference (NY & NJ) | Yes | $45.99 | New York and New Jersey orders route here automatically — state rules keep Quest and Labcorp from accepting self-ordered draws. | - [What a high Prolactin means (causes, symptoms, next steps)](https://www.test-well.com/biomarkers/prolactin/high) ## Common questions about Prolactin ### Do I need a doctor's order to test my prolactin? No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor. ### How long does it take to get Prolactin results? Most Prolactin results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment your results are ready, with everything viewable in your TestWell portal. ### How much does a Prolactin test cost? Our Prolactin starts at $39.99. That's the all-in price — no copays, no insurance hoops, no surprise bills. HSA and FSA cards are accepted. ### Do I need to fast before my Prolactin test? Fasting is not required for the Prolactin test. You can have your blood drawn any time of day. ### Which lab will process my Prolactin test? Your test will be processed by Quest Diagnostics, Labcorp, or BioReference depending on which is closest to you and which lab carries the test. All three are CLIA-certified and trusted by hospitals nationwide. You'll choose your lab during checkout from 4,000+ locations. ## Sources - [Mayo Clinic Labs](https://www.mayocliniclabs.com/test-catalog/overview/8688) - [MedlinePlus (NIH) — Prolactin Levels](https://medlineplus.gov/lab-tests/prolactin-levels/) ## Related biomarkers - [Total Testosterone](https://www.test-well.com/biomarkers/total-testosterone) - [Free Testosterone](https://www.test-well.com/biomarkers/free-testosterone) - [SHBG](https://www.test-well.com/biomarkers/shbg) - [Estradiol](https://www.test-well.com/biomarkers/estradiol) - [Cortisol AM](https://www.test-well.com/biomarkers/cortisol-am) - [DHEA-S](https://www.test-well.com/biomarkers/dhea-s) - [Reference range lookup tool](https://www.test-well.com/tools/reference-range-lookup) - [Lab unit converter](https://www.test-well.com/tools/lab-unit-converter) - [All biomarkers](https://www.test-well.com/biomarkers) --- Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-05. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/biomarkers/prolactin Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.