Polycystic ovary syndrome (PCOS)

Polycystic ovary syndrome (PCOS) is one of the most common hormonal conditions in women of reproductive age. It's diagnosed from a combination of irregular or absent ovulation, signs of excess androgens (such as acne or unwanted hair growth), and polycystic-appearing ovaries on ultrasound. Insulin resistance and weight gain are frequent companions, and they tend to make the hormonal picture worse.

That's why PCOS comes up so often on a GLP-1. Weight loss and improved insulin sensitivity can restore more regular cycles, which is also why fertility can return unexpectedly — a reason contraception planning matters. Some guidelines now propose renaming the condition to reflect its metabolic nature. See the guide on women's health on a GLP-1.

Related terms

Polysomnography — An overnight, in-lab sleep study that records brain activity, breathing, blood oxygen, heart rhythm, and movement to diagnose sleep disorders — the gold-standard test for obstructive sleep apnea.

Functional hypogonadism — Reduced testosterone in men that results from a reversible cause such as obesity, type 2 diabetes, or sleep apnea rather than damage to the hormonal axis; it typically improves with weight loss and is not an indication for testosterone therapy.

Cushing's syndrome — A condition of persistently excessive cortisol, caused by a hormone-producing tumor or long-term glucocorticoid medication, producing central weight gain, a rounded face, easy bruising, and muscle weakness — distinct from ordinary stress.

Cortisol — The main glucocorticoid hormone, released by the adrenal glands on a daily rhythm to raise blood sugar, sharpen alertness, and manage stress; chronically high levels break down muscle and, in true excess, drive central fat.

Related guides

Women's health on a GLP-1: birth control, pregnancy, PCOS, bone, and the things worth watching — For women, a GLP-1 raises questions no man has to think about — the biggest being fertility. These medications can make birth control less reliable and restore ovulation you weren't expecting, so "Ozempic babies" are a real phenomenon; they're also not safe in pregnancy. Here are the key women's-health angles: contraception and the pregnancy rules, why GLP-1s often help most in PCOS, protecting bone and muscle, and the menopause overlap.

Men's health on a GLP-1: testosterone, fertility, muscle, and the things worth watching — For men, losing weight on a GLP-1 does more than shrink the scale — it can raise testosterone that obesity was quietly suppressing, and unlike testosterone therapy it tends to preserve fertility. Here are the key men's-health angles the research is starting to fill in: the testosterone connection, sexual function and sperm, protecting muscle and bone, cardiovascular benefit, and sleep apnea — plus why the checkup men tend to skip matters more now.