Skip to content

Serum Follicle Count (Ovarian Follicle Count)

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

This test measures the number of ovarian follicles in your serum, which are small sacs containing immature eggs. It’s often used to assess ovarian reserve and reproductive health.

Quick summary

["This test helps evaluate how many follicles your ovaries may have left for future fertility."]

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

Key facts at a glance

LOINC
11879-4
Short code
Ovary-L Follicles US
Synonyms
Ovary-L Follicles US
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
us
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 Is This Test Done?

Doctors may order this test if you’re undergoing fertility treatments, experiencing irregular menstrual cycles, or suspecting conditions like polycystic ovary syndrome (PCOS). It can also help monitor ovarian health before procedures like egg retrieval.

What Does the Result Mean?

A lower-than-expected count may indicate reduced ovarian reserve, which can affect fertility. Higher-than-expected counts might be seen in conditions like PCOS, but interpretation depends on clinical context and your age.

How Is This Test Performed?

A blood sample is drawn from a vein, typically in your arm. The serum is then analyzed to count follicles, though this is often done indirectly through imaging (e.g., ultrasound) or specific biomarkers. Results may be qualitative or semi-quantitative.

What Are Common Uses?

This test supports fertility planning, pre-embryo transfer evaluations, and monitoring ovarian aging. It’s not a standalone diagnostic tool but complements other assessments like AMH (anti-Müllerian hormone) levels.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Ovarian Follicle Count

Frequently asked questions

How does this test differ from an AMH test?
AMH (anti-Müllerian hormone) measures hormone levels directly, while ovarian follicle count often relies on imaging or indirect methods. Both assess ovarian health but provide complementary insights.
Can I fast before this test?
No fasting is required for this test, as it’s a blood draw without dietary restrictions. However, always follow your doctor’s specific instructions for your appointment.
Is this test painful?
The blood draw itself may cause mild discomfort or bruising, but the follicle analysis itself is not painful. Most people tolerate it well, and you can return to normal activities afterward.
  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