What is Ovarian Cyst
Ovarian cysts are fluid-filled sacs, similar to blisters, that are common among women during their reproductive years. They form on the ovaries, the almond-sized organs on each side of the uterus. Most types of ovarian cysts are harmless and go away without any treatment.

What Causes Ovarian Cysts?
The normal function of the ovaries is to produce an egg each month. During the process of ovulation, a cyst-like structure called a follicle is formed inside the ovary. The mature follicle ruptures when an egg is released during ovulation. A corpus luteum forms from the empty follicle, and if pregnancy does not occur, the corpus luteum dissolves. Sometimes, however, this process does not conclude appropriately, causing the most common type of ovarian cyst -- functional ovarian cysts.

Abnormal ovarian cysts, such as polycystic ovarian disease, may occur as the result of an imbalance of female hormones (estrogen and progesterone).

Types of Ovarian Cysts

• Functional Cysts
  These normal cysts will often shrink and disappear within two or three menstrual cycles. Because this type of cyst is formed during ovulation, it rarely occurs in menopausal women because eggs are no longer being produced.
   

• Dermoid Cysts
  These are ovarian cysts that are filled with various types of tissues, including hair and skin.
   

• Endometrioma Cysts
  These cysts are also known as the "chocolate cysts" of endometriosis, and they form when tissue similar to the lining of the uterus attaches to the ovaries.
   

• Cystadenoma Cysts
  These are ovarian cysts that develop from cells on the outer surface of the ovaries.
   

• Polycystic Ovarian Disease
  This disease refers to cysts that form from a buildup of follicles. These cysts cause the ovaries to enlarge and create a thick outer covering, which may prevent ovulation from occurring, and are often the cause of fertility problems.

What are the Treatments for Ovarian Cysts?
Treatment of ovarian cysts depends on several factors, including:

• the size and type of cyst

• the woman's age and general health

• her future pregnancy plans

•  what symptoms she is experiencing

The earlier ovarian cysts are found, the less invasive the treatment.

Often, young women who are not experiencing any symptoms are advised to wait two or three months to see if the cysts dissolve on their own. In most cases, functional ovarian cysts will dissolve without any medical intervention or treatment.

Occasionally, physicians opt to prescribe oral contraceptives or hormones to shrink functional ovarian cysts. (Functional cysts are rare in women who use oral contraceptives since this method of birth control prevents ovulation.) Oral contraceptives are not an effective treatment for other types of benign ovarian cysts, but they do offer some protection against malignant ovarian cysts (ovarian cancer).

Surgery is sometimes necessary to treat ovarian cysts that are unresponsive to hormonal treatment. Cases that could require surgery include ovarian cysts that do not disappear after a few menstrual cycles and extremely large cysts.

Ovarian cysts that are found in post menopausal women, cause symptoms such as severe pain or bleeding, or have become twisted often require a surgical procedure.

The specific surgical procedure required depends on a number of factors, but typically the earlier ovarian cysts are discovered, the less extensive the surgery. Surgery can involve anything from simply removing the cyst to removing the ovary. In some severe cases, a hysterectomy is recommended.

Although your physician will discuss the planned procedure with you, you should keep in mind that the exact extent of the surgery may be unknown until the operation is in progress.