Skip to content

Ovarian Longest Diameter Measurement (Ultrasound)

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

This test measures the size of your ovaries using ultrasound imaging to assess their structure and potential abnormalities, often done during a pelvic exam or gynecological ultrasound.

Quick summary

["Helps evaluate ovarian health and detect potential issues like cysts or tumors."]

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

Key facts at a glance

LOINC
11840-6
Short code
Ovary-L Long diameter US.meas
Synonyms
Ovary-L Long diameter US.meas
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-measured
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

Doctors may order this test to monitor ovarian health, especially if you have symptoms like pelvic pain, irregular periods, or a family history of ovarian conditions. It can also be part of a general pelvic exam or before certain treatments.

How the Test Works

A healthcare provider uses ultrasound technology to create images of your ovaries. You’ll lie on an exam table, and a gel is applied to your abdomen or vagina (depending on the method) to allow the sound waves to pass through your body.

What to Expect During the Procedure

The procedure usually takes about 15–30 minutes. You may feel some pressure or slight discomfort, but it’s generally painless. No special preparation is needed, though you might want to wear comfortable clothing.

Preparation and Aftercare

No special preparation is required. After the test, you can resume normal activities immediately. If you had vaginal ultrasound, you may experience mild spotting or light bleeding for a day or two, but this is normal.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This measurement helps identify ovarian enlargement, cysts, or other structural changes that could indicate conditions like polycystic ovary syndrome (PCOS), endometriosis, or ovarian tumors. It’s also used to monitor ovarian reserve or track changes over time during fertility treatments.

Short name

Ovarian Size Check (Ultrasound)

Frequently asked questions

What does an abnormal ovarian size measurement mean?
An abnormal measurement may suggest enlarged ovaries, cysts, or other conditions that need further evaluation. Your doctor will discuss findings with you and may recommend additional tests or follow-ups.
Is this test painful?
Most people describe it as mild discomfort or pressure, but it’s not typically painful. If you’re uncomfortable, let your healthcare provider know.
Can I eat or drink before this test?
No special diet or fasting is required for this test. You can eat and drink normally before your appointment.
  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