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FSH (Follicle Stimulating Hormone) - Urine, 24-Hour Collection

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

This test measures the amount of Follicle Stimulating Hormone (FSH) in your urine over a full day. FSH is a hormone produced by the pituitary gland that plays a key role in reproductive health.

Quick summary

["Assessing your daily FSH levels in urine can help evaluate reproductive function and hormone balance."]

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

Key facts at a glance

LOINC
111173-1
Short code
FSH Msmt Ur
Synonyms
FSH Msmt Ur
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Ref low
3.5
Ref high
12.5
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
83001
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 healthcare provider may recommend this test if you have symptoms or conditions related to reproductive hormone imbalances, such as irregular periods, infertility, or suspected hormonal disorders. It could also be used to monitor treatment for conditions affecting hormone levels.

What to Expect Before the Test

You’ll need to collect all urine produced in a 24-hour period, typically starting after midnight and ending just before midnight the next day. Use a clean container and keep it refrigerated to preserve the sample. Follow your provider’s specific instructions for timing and collection.

What to Expect During the Test

No special preparation is needed beyond the urine collection. The sample is sent to a lab for analysis, and results are compared to reference ranges that may vary by age, sex, and health status.

What the Results Mean

Results help determine if your FSH levels are within normal ranges for your gender and age. Abnormal levels may indicate conditions like early menopause, hypogonadism, or other hormonal imbalances that require further evaluation.

Reference range

Follicular: 3.5-12.5 mIU/mLN/A

Specimen: urine

For females: inform if menstrual cycle status. For certain tests, timing within menstrual cycle may matter.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

24-Hour Urine FSH

Frequently asked questions

How is this test different from a blood FSH test?
This urine test measures FSH over a full day, giving a broader picture of your daily hormone output. Blood tests typically provide a single snapshot of hormone levels at a specific time. Urine tests can sometimes reflect longer-term hormone balance, while blood tests are often more precise for immediate assessment.
What conditions might affect my urine FSH results?
Several factors can influence FSH levels, including age, menstrual cycle phase, medications (e.g., birth control, hormone therapies), chronic illnesses, or stress. If you suspect these factors may affect your results, discuss them with your provider before or after testing.
Can I take medications before my urine collection?
Some medications, such as hormone therapies or certain antidepressants, may influence FSH levels. If you’re unsure whether your current medications could affect the test, ask your healthcare provider to confirm if adjustments or timing are needed.
  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