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FSH (Follicle Stimulating Hormone) – 24-Hour Urinary Total

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

This test measures the total amount of Follicle Stimulating Hormone (FSH) excreted in your urine over a 24-hour period. FSH is a hormone involved in reproductive function, particularly in regulating the menstrual cycle and sperm production.

Quick summary

["Assesses long-term FSH levels in urine to help evaluate reproductive health and hormone balance."]

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

Key facts at a glance

LOINC
15068-0
Short code
FSH 24h Ur
Synonyms
FSH 24h 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 hormonal imbalances, such as irregular periods, infertility, or suspected endocrine disorders. It can also be part of a broader evaluation for conditions like polycystic ovary syndrome (PCOS) or hypogonadism.

What to Expect Before the Test

No special preparation is typically required for this test. You will likely be asked to collect all urine for 24 hours, starting from one point in the morning and ending the next morning. Store the urine in a refrigerator or at room temperature, and bring the entire sample to your lab.

What the Test Results Mean

Results are interpreted based on your clinical symptoms, medical history, and other test results. Elevated levels may suggest conditions like premature ovarian insufficiency or certain tumors, while lower levels could indicate hormonal deficiencies or other reproductive health concerns.

Common Conditions Monitored or Diagnosed

This test can help diagnose or monitor conditions such as infertility, hormonal imbalances, or reproductive disorders. It may also be used in the evaluation of conditions affecting the pituitary gland or ovaries/testes.

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 Urinary FSH Total

Frequently asked questions

What does a high urinary FSH level mean?
A high urinary FSH level may indicate reduced ovarian or testicular function, such as in early menopause or hypogonadism. It can also be seen in conditions affecting the pituitary gland or certain cancers. Always discuss results with your healthcare provider.
How does this test differ from serum FSH?
Urinary FSH measures the hormone as it appears in your urine over 24 hours, reflecting overall excretion. Serum FSH measures the hormone directly in your blood, which can give a more immediate snapshot of current hormone levels. Both tests can complement each other in evaluating reproductive health.
Is there any dietary or lifestyle restriction before this test?
No specific dietary or lifestyle restrictions are needed for this test. However, avoid excessive alcohol or caffeine, as they may influence hormone levels. Follow your healthcare provider’s instructions for any additional guidance.
  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