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Estrogen (Total) in Serum or Plasma

Published: August 9, 2026Updated: August 16, 2026

This test measures the total amount of estrogen hormones in your blood. Estrogen is a key hormone in women’s reproductive health and plays a role in men’s hormone balance as well.

Quick summary

["Your estrogen levels help regulate menstrual cycles, bone health, and overall hormone function."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
34295-6
Short code
Estrogen Ur-sCnc
Synonyms
Estrogen Ur-sCnc
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 This Test Might Be Ordered

Your doctor may recommend this test to check for hormonal imbalances, evaluate symptoms like irregular periods, hot flashes, or fertility issues, or monitor conditions like perimenopause, polycystic ovary syndrome (PCOS), or hormone therapy.

What to Expect Before the Test

No special preparation is usually needed, but your doctor might advise avoiding certain medications (like birth control) or dietary supplements that could affect results. Blood is drawn from a vein, similar to other blood tests.

What the Results Mean

Results help identify whether your estrogen levels are too high or too low. Abnormal levels may signal conditions like thyroid disorders, ovarian cysts, or hormonal cancers. Your doctor will interpret results in the context of your symptoms and medical history.

Common Reasons for Abnormal Results

Low estrogen might be linked to menopause, ovarian failure, or certain medications. High estrogen could relate to tumors, hormonal imbalances, or conditions like PCOS. Always discuss results with your healthcare provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: How This Test Supports Health

Short name

Total Estrogen Level

Frequently asked questions

How Often Should I Get This Test?
The frequency depends on your health status. Women in perimenopause or postmenopausal women may need monitoring every few years, while others might get it during routine checkups or symptom-driven.
What If My Results Are Outside the Normal Range?
If your results are abnormal, your doctor will work with you to determine the cause and next steps, which could include further testing, lifestyle changes, or treatment options tailored to your needs.
Does Diet or Exercise Affect This Test?
While diet and exercise influence overall hormone health, they don’t directly alter estrogen levels measured in this test. However, maintaining a balanced diet and regular activity can support hormonal balance.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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