What is Polycystic Ovary Syndrome (PCOS)?

What is PCOS?

It is an endocrine disorder characterized by rare or irregular ovulation and high androgen activity, which can lead to acne and hirsutism. While multiple small follicles may be visible on an ultrasound, they are not mandatory for diagnosis, nor is the ultrasound used as the sole basis for diagnosis.

Other causes that produce similar symptoms, such as thyroid disease and hyperprolactinemia, must be excluded.

What is the relationship with weight?

insulin resistanceThis is often accompanied by, and high insulinThis can affect hormone production and ovulation in the ovaries. Abdominal fat and weight gain can exacerbate the risk, although lean PCOS also exists.

The severity of the condition is not judged by weight alone, nor is it excluded simply because a person has a normal weight.

What tests are performed?

The menstrual cycle, possibility of pregnancy, acne, hirsutism, and hair loss are checked. Hormone and blood sugarlipid tests are performed, and a pelvic ultrasound is conducted if necessary.

blood pressureand waist circumference, and risks for sleep apnea and mental health may also be evaluated.

How is weight managed?

If overweight, even a small amount of sustainable weight loss can help with ovulation and blood glucose levels. Regular meals, aerobic and strength activities, and sleep are managed together.

Rather than completely cutting out carbohydrates or fasting for long periods, the focus is on the quality of whole foods, energy, and feasibility.

When is a medical evaluation necessary?

Please seek an evaluation if you experience a long absence of menstruation, abnormal bleeding, difficulty conceiving, or rapid onset of hirsutism and voice changes. Sudden androgenic symptoms require checking for other causes.

Pregnancy planning, contraception, and medication treatments vary according to individual goals and should be discussed with an obstetrician-gynecologist.

What three axes are looked at in the diagnosis?

PCOS evaluation examines whether ovulation is rare or irregular, whether there is an excess of male hormones in blood tests or physical findings, and whether the ovarian morphology meets the criteria. The required combination varies by application criteria and age, and diagnosis is not made based on ultrasound findings alone.

Since irregular menstruation and acne are common during puberty, applying adult criteria directly may lead to overdiagnosis. Conversely, even if menstruation is regular, further evaluation may be necessary depending on other symptoms and test results.

What are the causes of similar symptoms?

Thyroid disease, prolactin abnormalities, non-classic congenital adrenal hyperplasia, pregnancy, and certain medications can also cause menstrual changes or androgenic symptoms. If symptoms progress very rapidly or if voice changes and muscle increase are prominent, other causes are more actively investigated.

Rather than attributing weight gain solely to PCOS, the onset timing, sleep, medication, and changes in diet and activity are considered together. Diagnosis is a process of excluding other causes and connecting various findings.

Is management necessary even if my weight is normal?

PCOS is not a condition that is always accompanied by being overweight. Even if your weight is within the normal range, it is possible to evaluate your menstrual cycle, blood glucose, lipids, sleep, and mental health. Weight loss should not be uniformly required for those who do not need it.

If you are overweight, a small amount of weight loss may help with ovulation and metabolic indicators, but results vary by individual. Goals are set based on what is most important to you among menstruation, pregnancy planning, skin symptoms, and metabolic health.

What should be tracked in the long term?

Record your menstrual dates, amount of bleeding, changes in acne or hirsutism, weight, and waist circumference, and have your blood pressure, blood glucose, and lipids tested according to your risk level. If you experience loud snoring and daytime sleepiness, the possibility of sleep apnea will also be noted.

If menstruation is absent for a long period, you should consult with medical staff to determine if endometrial protection is necessary. If pregnancy plans change, medications and treatment goals may also change, so previous plans are not simply continued.

Polycystic Ovary Syndrome is not diagnosed by ultrasound images alone

Evaluation varies depending on which criteria are applied among ovulation disorders, clinical or biochemical hyperandrogenism, and ovarian morphology. In adolescence, these may overlap with normal pubertal changes, and causes that produce similar symptoms, such as thyroid disease or hyperprolactinemia, must be excluded.

While weight gain can be common, not all patients are overweight. The explanation that 'everything will be solved if you lose weight' oversimplifies menstruation, infertility, skin symptoms, and long-term metabolic risks.

Records to add to your weight management plan

In addition to weight and waist circumference, record your menstrual intervals, changes in acne or hirsutism, sleep, blood glucose, lipids, and medications. Maintain strength-building activities and sufficient nutrition while monitoring whether excessive restriction makes menstruation more irregular.

If you experience prolonged amenorrhea, very heavy bleeding, possibility of pregnancy, or severe pelvic pain, medical evaluation takes priority over diet adjustment. If you are planning a pregnancy or taking blood glucose or hormone medications, you must align your goals and treatment with your medical provider.

Is weight loss a diagnostic condition for Polycystic Ovary Syndrome?

No. Polycystic Ovary Syndrome is evaluated by distinguishing menstrual and ovulation disorders, androgen-related findings, and ovarian morphology from other causes; it is not diagnosed by weight alone. It can occur in people with a normal weight, and weight gain does not automatically mean a person has this syndrome.

While weight control may help the metabolism and menstrual health of some people, attributing all symptoms to weight may lead to missing differential diagnoses such as thyroid disease and hyperprolactinemia. Individual treatment goals are set by considering menstrual records, symptoms, and test results together.

What should be checked separately when planning a pregnancy?

Organize your last menstrual period, cycle length, duration of pregnancy attempts, medications, and supplements to share during your OB/GYN appointment. If menstruation is irregular, it is difficult to estimate the timing of ovulation using only a calendar, and some medications may need to be reviewed if there is a possibility of pregnancy.

Excessively restricting meals for rapid weight loss can further disrupt nutritional intake and menstrual rhythms. When preparing for pregnancy, check not only the weight number but also blood pressure, blood glucose, nutritional status including folic acid, sleep, and the safety of medications.

If pregnancy test results do not match the menstrual delay, or if there is bleeding or pain, check the timing for medical evaluation before adjusting your diet.