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Estrogen (Total) in Serum/Plasma

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

This test measures the total amount of estrogen hormones in your blood, which play a key role in reproductive health and hormone balance.

Quick summary

["Understanding your estrogen levels can help assess reproductive function or hormonal imbalances."]

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

Key facts at a glance

LOINC
12597-1
Short code
Estrogen sp2 p chal SerPl-mCnc
Synonyms
Estrogen sp2 p chal SerPl-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test to evaluate symptoms like irregular periods, infertility, or signs of hormonal disorders. It can also help monitor conditions such as polycystic ovary syndrome (PCOS), menopause, or hormone replacement therapy.

What to Expect Before the Test

Blood will be drawn from a vein, usually in your arm. You may feel a slight pinch, but it typically only takes a few minutes.

What the Results Mean

High estrogen levels might indicate conditions like ovarian tumors or hormonal imbalances, while low levels could suggest menopause, thyroid issues, or other hormonal deficiencies.

Common Conditions Monitored

Your provider will discuss the results in detail and may recommend follow-up tests or treatments based on your specific situation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Estrogen Levels and Health

Short name

Total Estrogen Level

Frequently asked questions

What causes abnormal estrogen levels?
Abnormal levels may result from conditions like ovarian cysts, thyroid disorders, obesity, or certain medications. Hormonal imbalances, pregnancy, or menopause can also influence results.
How often should I get this test?
Frequency depends on your symptoms and medical needs. Your provider will determine the best timing—often every 6–12 months for monitoring.
Can diet or supplements affect this test?
Some foods (like soy products) or supplements (e.g., phytoestrogens) may influence estrogen levels. Your provider may advise avoiding them for a few days before testing.
  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