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Progesterone

How It Feels

You may feel nothing at all from the needle puncture, or you may feel a brief sting or pinch as the needle goes through the skin. Some people feel a stinging pain while the needle is in the vein. But many people do not feel any pain or have only minor discomfort once the needle is positioned in the vein.

Risks

There is very little risk of complications from having blood drawn from a vein.

  • You may develop a small bruise at the puncture site. You can reduce the risk of bruising by keeping pressure on the site for several minutes after the needle is withdrawn.
  • In rare cases, the vein may become inflamed after the blood sample is taken. This condition is called phlebitis and is usually treated with a warm compress applied several times daily.
  • Continued bleeding can be a problem for people who have bleeding disorders. Aspirin, warfarin (Coumadin), and other blood-thinning medicines can also make bleeding more likely. If you have bleeding or clotting problems, or if you take blood-thinning medicine, tell your doctor before your blood is drawn.

Results

A progesterone test measures the amount of the hormone progesterone in a blood sample.

Results are usually available within 24 hours.

Normal

The normal values listed here—called a reference range—are just a guide. These ranges vary from lab to lab, and your lab may have a different range for what's normal. Your lab report should contain the range your lab uses. Also, your doctor will evaluate your results based on your health and other factors. This means that a value that falls outside the normal values listed here may still be normal for you or your lab.

Progesterone levels during the menstrual cycle1
Days 1–14:

Less than 1 nanogram per milliliter (ng/mL) or 0.5–2.3 nanomoles per liter (nmol/L)

Days 15–28:

2–25 ng/mL or 6.4–79.5 nmol/L

 

Progesterone levels during pregnancy1
1st trimester:

10–44 ng/mL or 32.6–140 nmol/L

2nd trimester:

19.5–82.5 ng/mL or 62–262 nmol/L

3rd trimester:

65–290 ng/mL or 206.7–728 nmol/L

 

Progesterone levels in men1
Normal:

Less than 1 ng/mL or less than 3.2 nmol/L

 

Progesterone levels after menopause2
Normal:

Less than 1.0 ng/mL or less than 2 nmol/L

 

Many conditions can change progesterone levels. Your doctor will discuss any significant abnormal results with you in relation to your symptoms and past health.

High values

High progesterone values may be caused by:

Low values

Low progesterone values may be caused by:

  • Problems with ovulation.
  • Possible miscarriage.

WebMD Medical Reference from Healthwise

Last Updated: February 22, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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