Skip to content

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

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

This test measures the total amount of follicle-stimulating hormone (FSH) found in your urine over a 24-hour period. It helps assess hormone balance, especially in conditions affecting reproductive health.

Quick summary

["FSH is a key hormone for reproductive function; urinary testing over 24 hours provides a broader picture of daily hormone levels."]

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

Key facts at a glance

LOINC
27203-9
Short code
FSH 24h Ur-aCnc
Synonyms
FSH 24h Ur-aCnc
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 Is Used

Your doctor may recommend this test if you have symptoms like irregular periods, infertility, or signs of hormonal imbalances. It can also help diagnose conditions such as polycystic ovary syndrome (PCOS) or other reproductive disorders. In men, it may be used to evaluate low testosterone or other hormonal issues.

What to Expect Before the Test

No special preparation is typically needed, but you may be asked to collect all urine for 24 hours. Drink plenty of water to help dilute your urine. Avoid certain medications or supplements that could affect hormone levels, as advised by your healthcare provider.

How the Test Is Performed

You’ll collect all urine produced in a 24-hour period in a special container. The sample is then sent to a lab for analysis. The test measures the total FSH concentration in your urine, which reflects your body’s overall hormone activity.

What the Results Mean

Results are compared to general reference ranges for age and sex. High levels may indicate conditions like premature ovarian insufficiency or certain cancers, while low levels could suggest hormonal deficiencies or other health issues. Your doctor will interpret results in the context of your medical history and symptoms.

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

What causes elevated FSH levels in urine?
Elevated urinary FSH levels may be due to conditions affecting the ovaries or testes, such as premature menopause, ovarian dysfunction, or certain cancers. It can also occur in men with low testosterone or other hormonal imbalances. Always discuss symptoms and results with your healthcare provider.
What causes low FSH levels in urine?
Low urinary FSH levels may suggest conditions like hypothyroidism, pituitary disorders, or certain genetic syndromes. In men, it could indicate issues with sperm production or other reproductive health problems. Your doctor will evaluate these results alongside other tests and your medical history.
How often should this test be repeated?
The frequency depends on your symptoms and diagnosis. If your doctor orders this test, they will determine if follow-up testing is needed. Repeat tests may be recommended if initial results are abnormal or if symptoms persist or change.
  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