What are the types of ovarian cysts?

Types of ovarian cyst. There are several different types of ovarian cyst. The most common are called functional cysts. Functional cysts develop as a woman goes through her menstrual cycle. The eggs in a woman’s ovary develop inside small swellings called follicles. Every month, one of these follicles grows larger, until it eventually bursts, releasing the egg. Functional cysts develop from these follicles. They include:
• follicular cysts - these develop when the follicle fails to burst
corpus luteum - this is formed when the egg has been released by the follicle, but the follicle fails to break down - instead it becomes filled with fluid or blood
These types of cyst tend to go away by themselves.

Other types of ovarian cyst don´t form during the menstrual cycle, but are due to unusual growth of cells in the ovary. These include:
• cystadenomas - these are formed from cells that cover the outer surface of the ovary - they can be filled with a watery liquid (serous cystadenoma) or a thicker, sticky fluid (mucinous cystadenoma)
• dermoid cysts - these develop from the cells that make eggs in the ovary - they may contain several types of tissue, including hair, teeth and other material
• endometriomas - these are often associated with endometriosis and form when endometrial tissue (the cells lining the womb) starts to grow in the ovaries

These types of cyst may also be referred to as ovarian tumours. A tumour just means an uncontrolled growth of cells. Most ovarian tumours are benign (they aren’t cancerous, and don’t invade other tissues or spread to other parts of the body).

However, a tumour may occasionally turn out to be malignant (cancerous). This means it may spread to other parts of the body and invade surrounding tissue. This is why it is important that all cysts are checked by your doctor.

Related Questions

Are there different types of ovarian cysts?

Yes there are. The most common cysts are called "physiologic cysts" and are under the influence of your hormones. There are several different types and they can come, go and be painful. The biggest thing to find out from ultrasound and your doc is if it may be a cystic tumor. Tumor means "growth", and is usually benign but can be malignant. These will not go away spontaneously and might require surgery. Read more...

Hello, I was diagnosed with an ovarian cyst, which is causing me a lot of pain and making nauseous. Does this type of cyst have to be removed? And how?

Most often not. Functional ovarian cysts don't need treatment and often go away on their own in 6 - 12 weeks. If you have frequent cysts, birth control pills can be prescribed to reduce the risk of new cysts. Rarely, surgery may be needed to remove the cyst or ovary to make sure its not cancer. Complex ovarian cysts & cysts causing symptoms that don't go away plus very large cysts are often surgically removed. Read more...

I was diagnosed with a hemorrhagic ovarian cyst. I have read this type of cyst can cause an infection what should I watch for?

Not usual. Hemorrhagic cysts are common, usually do not require treatment and do not cause infection. Pelvic infection is usually associated with pain (both sides) and fever. Read more...