Estrogen, Urine Mass Concentration (24-hour collection)
This test measures the total amount of estrogen hormones found in your urine over a 24-hour period. Estrogen is a key hormone in women’s reproductive health and helps regulate menstrual cycles, bone health, and other bodily functions.
["This test helps track hormone levels over time and can be useful for diagnosing hormonal imbalances or conditions like perimenopause or polycystic ovary syndrome (PCOS)."]
Key facts at a glance
- LOINC
- 2255-8
- Short code
- Estrogen Ur-mCnc
- Synonyms
- Estrogen Ur-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why Is This Test Done?
Your healthcare provider may order this test to monitor estrogen levels in women experiencing symptoms like irregular periods, hot flashes, or signs of hormonal changes. It can also be used in research or clinical studies to assess long-term hormone exposure or excretion patterns.
What to Expect Before the Test
You’ll need to collect all urine for a full 24-hour period, typically starting after your first urine of the day. Store samples refrigerated and return them to your provider on time. Follow any specific instructions they provide to ensure accurate results.
What Happens During the Test?
No special preparation is needed beyond collecting urine samples. The test involves analyzing the combined urine from your 24-hour collection to determine the total estrogen mass concentration.
What Are the Possible Results?
Results are interpreted by your healthcare provider based on your medical history, symptoms, and other lab findings. Abnormal results may indicate hormonal imbalances or conditions affecting estrogen metabolism.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Estrogen levels in urine can reflect overall hormone health, especially in women undergoing menopause or with reproductive disorders. Low or high levels may signal conditions like hypoestrogenism (low estrogen), hyperestrogenism (high estrogen), or other endocrine-related issues. This test may also be used in research or specialized clinical scenarios to assess long-term hormone dynamics.
Short name
Urine Estrogen Test
Frequently asked questions
Why might my doctor recommend this test?
How often should I expect this test?
Can I take medications or supplements before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy