Atrophy of the Ovary: Understanding Your Pathology Report

Section Editor: Kianoosh Keyhanian MD FRCPC
August 31, 2026

Atrophy of the ovary means the ovary has become smaller and has lost most of its egg-producing tissue. Pathologists use atrophy to describe an organ that shrinks and loses functional tissue. Your report may also describe the ovary as atrophic, involuted, or postmenopausal.

In the ovary, atrophy is usually a normal change rather than a disease. Every ovary contains a fixed supply of eggs from birth, and that supply is gradually used up over the reproductive years. When it runs out, the ovary stops releasing eggs, shrinks, and its tissue becomes firmer. This is menopause at the tissue level.

Ovarian atrophy is not cancer, and it is not precancerous. It describes what the pathologist observed rather than a diagnosis in itself, and in a woman past menopause, it is the expected finding. This article will help you understand what this term means on your pathology report and why it matters for your care.

What causes atrophy of the ovary?

Ovarian atrophy has one common cause and several uncommon ones. The common cause is simply time.

Menopause — By far the most common reason. The egg supply is exhausted, ovulation stops, and estrogen production falls. The ovary shrinks over the following years. This is normal and happens to everyone.
Surgery — Removing both ovaries, an operation called oophorectomy, ends ovarian hormone production immediately. This is sometimes called surgical menopause.
Chemotherapy and radiation — Both can damage the eggs remaining in the ovary. The effect depends on the drugs used, the radiation dose, and your age at the time. Some people recover ovarian function afterward, and some do not.
Autoimmune conditions — In a small number of people, the immune system attacks the ovary. The resulting inflammation destroys follicles and leads to early loss of function.
Genetic conditions — Turner syndrome, changes in the FMR1 gene, and other inherited conditions can reduce the egg supply from the outset or cause it to run out early.

One cause listed in some sources needs correcting. Hormonal contraceptives are sometimes said to cause ovarian atrophy. They do not. The combined pill, the hormonal IUD, and similar medications work by pausing ovulation, and an ovary examined during that time looks quiet and inactive. That appearance is suppression, not atrophy, and ovarian function returns after you stop the medication. Medications used to suppress the ovaries deliberately, such as those given for endometriosis or fibroids, have the same reversible effect.

What are the symptoms?

Ovarian atrophy itself causes no symptoms. Any symptoms come from the drop in estrogen that accompanies it, and they are the symptoms of menopause, whether menopause arrived naturally or was brought on by surgery or treatment.

Periods stopping or becoming irregular — Usually the first change, and often the one that leads to the diagnosis.
Hot flashes and night sweats — Caused by falling estrogen. These tend to be more sudden and more intense after surgical removal of the ovaries than after natural menopause.
Vaginal dryness and discomfort — Lower estrogen thins the lining of the vagina, which can cause dryness, irritation, and pain with intercourse.
Changes in sexual desire — Hormone changes affect libido for some people, though many other factors contribute.
Loss of fertility — An ovary without follicles cannot release eggs.

If only one ovary was removed and the other is working normally, none of these apply. The remaining ovary continues to produce hormones and release eggs, and periods usually carry on unchanged.

How is the diagnosis made?

Atrophy of the ovary is almost always an incidental finding. The ovary is removed for another reason, and a pathologist describes the atrophic changes while examining it. Common reasons for the ovary to reach the laboratory include a hysterectomy, surgery for a tumor elsewhere in the pelvis, or risk-reducing surgery.

A doctor does not test for atrophy. In a woman past the age of menopause, it is the expected finding and is reported simply because a complete report describes what was seen. Its presence in your report does not mean anything went wrong.

Clinically, low ovarian function is assessed with blood tests rather than with a biopsy. Hormone levels can show that the ovaries have stopped working, which matters most when this happens at a younger age than expected.

What does atrophy of the ovary look like under the microscope?

An atrophic ovary is small, firm, and made mostly of dense supporting tissue with few or no follicles. To the naked eye, it is shrunken, often with a wrinkled or furrowed surface. Under the microscope, the pathologist looks for the following features.

Few or no follicles — A follicle is the structure that holds a developing egg. In an atrophic ovary,y these are sparse or absent altogether, which is the central finding.
Dense supporting tissue — The outer part of the ovary becomes firm and fibrous. The stroma, the supporting tissue of the ovary, dominates the picture once the follicles are gone.
Old scars from past ovulations — Small white scars called corpora albicantia are the remains of previous cycles. They persist for years and are normal.
Thick-walled blood vessels — The small vessels in the ovary develop thickened, hardened walls with age.
Hilus cells — Clusters of hormone-producing cells near where the blood vessels enter the ovary become easier to see once the rest of the tissue has shrunk.
Small inclusion cysts — Tiny cortical inclusion cysts are common in older ovaries and are a normal finding.

Does an atrophic ovary still make hormones?

Yes, though not the same ones and not in the same amounts. The follicles were the main source of estrogen, so estrogen production falls sharply once they are gone. The supporting tissue and the hilus cells continue to produce small amounts of male-type hormones called androgens. The body converts some of these into estrogen elsewhere, mainly in fat tissue.

This is why an ovary that has stopped releasing eggs is not simply inactive. It also explains why removing both ovaries produces a more abrupt hormonal change than natural menopause, in which the ovaries stay in place and keep contributing something.

What if atrophy is found at a younger age?

Loss of ovarian function before the age of 40 is called premature ovarian insufficiency, sometimes called primary ovarian insufficiency or premature menopause. It affects roughly 1 in 100 women, and in most cases no cause is ever identified.

This matters for more than fertility. Estrogen protects bone strength and affects the heart and blood vessels, so losing it decades early carries long-term consequences. For that reason, national guidelines recommend hormone therapy for women with premature ovarian insufficiency. It is usually continued until around the average age of natural menopause, which is 50 to 51, unless there is a reason not to take it.

Several other things are usually discussed at the same time: testing for a genetic or autoimmune cause, bone density assessment, and fertility options. If your report describes an atrophic ovary and you are under 40, this is a conversation worth having with your doctor rather than something to leave sitting in the report.

What other findings may be described in the report?

Atrophy is rarely the only finding in a report, and another finding is usually the reason for surgery. Findings commonly described alongside an atrophic ovary include:

Ovary size — The report gives measurements. A small ovary after menopause is expected. An enlarged ovary after menopause prompts investigation, because the ovary should be shrinking at that stage.
Cysts — A cortical inclusion cyst is common in older ovaries. A follicle cyst or corpus luteum cyst would be unusual in a truly atrophic ovary, since both depend on ovulation.
Adhesions — Bands of scar tissue on the ovarian surface. Periovarian adhesions are noncancerous and are reported separately.
The fallopian tube — When removed with the ovary, it is examined and reported separately.
A separate tumor — If a tumor was found, it is described in detail and separately. That diagnosis determines what happens next, not the atrophy.

What happens after this finding?

Atrophy of the ovary needs no treatment in its own right and requires no follow-up. It is not a disease, and it does not turn into cancer. What happens next depends on your age, on whether you have symptoms, and on the other findings in your report. Points your doctor may raise include:

Managing menopausal symptoms — Hot flashes, night sweats, and vaginal dryness can all be treated. Options range from vaginal estrogen used locally to systemic hormone therapy and non-hormonal medications.
Bone and heart health — Estrogen loss affects both. This matters most when menopause happens early or is brought on by surgery.
Hormone therapy after surgery — If both ovaries were removed before the usual age of menopause, hormone therapy is often recommended. Whether it is suitable depends on your medical history, including why the ovaries were removed.
Fertility — If fertility is a concern and this finding was unexpected, ask for referral to a fertility specialist rather than waiting.
No cancer follow-up — Atrophy is not monitored, and no imaging or repeat testing is needed because of it.

Questions to ask your doctor

Is this finding expected for my age, or is it early?
Was one ovary affected, or both?
Was an ovary removed, and if so, why?
Could my previous treatment, such as chemotherapy or radiation, have caused this?
Should I be tested for a genetic or autoimmune cause?
Do I need blood tests to check my hormone levels?
What does this mean for my fertility, and should I see a fertility specialist?
Would hormone therapy be appropriate for me?
What can be done about hot flashes or vaginal dryness?
Should I have my bone density checked?
Were any other findings described in the ovary or fallopian tube?
Do I need any follow-up for this finding?