Ovaries and uterus

Learn more about health conditions, medical procedures and key terms that relate to the ovaries and uterus. We also explain symptoms, causes and treatment options for each.
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What are ovaries?

Ovaries are small oval-shaped organs that store eggs. They also make female hormones that control your menstrual cycle and pregnancy.

Women are usually born with 2 ovaries, one on each side of the uterus.

What is a uterus?

The uterus (womb) is a muscular organ that sits in the belly (abdomen).

The lower part of the uterus connects to the vagina. The uterus is part of the female reproductive system. It’s where periods come from and where babies grow.

Adenomyosis

Adenomyosis is a condition where tissue similar to the lining of the uterus grows into the muscle wall, often causing painful and heavy periods and pelvic pain. This page explains the symptoms, possible causes, how adenomyosis is diagnosed, and the treatment options available, including hormone medicines and surgery.

Fibroids

Fibroids are common, noncancerous growths in the muscle wall of the uterus that can cause symptoms such as heavy or painful periods and irregular bleeding, though many people have no symptoms at all. This page explains what fibroids are, how they’re diagnosed, treatment options, and when to see your doctor.

Hysterectomy

A hysterectomy is surgery to remove the uterus and may be recommended for conditions such as fibroids, endometriosis or cancer. This page explains the different types of hysterectomy, why it may be needed, how it’s performed, and the benefits and risks to help you make an informed decision with your doctor.

Polyps and ovarian cysts

Polyps and ovarian cysts are common growths in the reproductive system that are usually harmless but can sometimes cause symptoms such as irregular bleeding or pelvic pain. This page explains the symptoms, causes, diagnosis and treatment options for polyps and ovarian cysts, and when to see your doctor.

Endometrial hyperplasia

Endometrial hyperplasia is a condition where the lining of the uterus becomes abnormally thick, often causing heavy or irregular bleeding. This page explains the symptoms, causes, risk factors, how it’s diagnosed, and treatment options, including hormone therapy and surgery.