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Ovarian Cysts

Understanding Ovarian Cysts

Ovarian cysts are fluid-filled sacs or pockets that develop inside an ovary or on its surface. The ovaries are two small, almond-shaped organs located on either side of the uterus and are responsible for producing eggs and female hormones during the reproductive years.

What Are Ovarian Cysts?

Ovarian cysts are common and many women develop them at some point in their lives. Most cysts are harmless, cause little or no discomfort, and disappear naturally within a few months without requiring treatment.

In some cases, ovarian cysts can become large, rupture, or twist the ovary, leading to severe pain and other complications. Regular pelvic examinations and timely medical evaluation can help detect ovarian cysts early and ensure appropriate treatment when necessary.

Illustration of ovarian cysts in the ovaries
Symptoms

Common Symptoms of Ovarian Cysts

Most ovarian cysts cause no symptoms and disappear on their own. However, larger cysts or those causing complications may produce noticeable symptoms that require medical attention.

Pelvic Pain

A dull or sharp ache in the lower abdomen, usually on the side of the affected ovary.

Abdominal Fullness

A feeling of fullness or heaviness in the abdomen caused by a growing cyst.

Bloating

Swelling or bloating of the abdomen that may cause discomfort.

Sudden Severe Pain

Sharp abdominal or pelvic pain may indicate a ruptured cyst or ovarian torsion.

Pain with Fever or Vomiting

Pain accompanied by fever or vomiting may indicate a serious complication.

Signs of Shock

Cold, clammy skin, rapid breathing, dizziness, or weakness require immediate emergency care.

Risk Factors

Factors That Increase the Risk of Ovarian Cysts

While ovarian cysts are common and often harmless, certain medical conditions and life stages can increase the likelihood of developing them.

Hormonal Problems

Fertility medications such as clomiphene (Clomid), which stimulate ovulation, may increase the risk of ovarian cysts.

Pregnancy

A cyst formed during ovulation may remain on the ovary throughout pregnancy in some women.

Endometriosis

Endometrial tissue growing outside the uterus can attach to the ovary and develop into an endometrioma.

Severe Pelvic Infection

A serious pelvic infection that spreads to the ovaries can increase the risk of cyst formation.

Previous Ovarian Cyst

Women who have had an ovarian cyst before are more likely to develop another one in the future.

Causes

What Causes Ovarian Cysts?

Most ovarian cysts develop naturally as part of the menstrual cycle and are known as functional cysts. These cysts are usually harmless and often disappear on their own without treatment.

Functional Cysts

The most common type of ovarian cyst

  • Natural Menstrual Cycle: Most ovarian cysts form as a normal part of ovulation.
  • Follicles: Each month, follicles develop in the ovaries to produce hormones and release an egg.
  • Usually Harmless: Functional cysts rarely cause pain and often resolve naturally within two or three menstrual cycles.

Types of Functional Cysts

Common cysts related to ovulation

  • Follicular Cyst: Forms when the follicle doesn't release the egg and continues to grow.
  • Corpus Luteum Cyst: Develops when fluid collects inside the corpus luteum after ovulation.
  • Self-Resolving: Most functional cysts disappear without treatment over time.
Types of Ovarian Cysts

Different Types of Ovarian Cysts

While most ovarian cysts are harmless and related to the menstrual cycle, some types develop independently and may require closer monitoring or treatment.

Dermoid Cysts (Teratomas)

Formed from embryonic cells, these cysts may contain hair, skin, or teeth and are rarely cancerous.

Cystadenomas

Develop on the surface of the ovary and are usually filled with watery or mucus-like fluid.

Endometriomas

Caused by endometriosis, where uterine tissue grows outside the uterus and attaches to the ovary.

Large Ovarian Cysts

Dermoid cysts and cystadenomas may grow large enough to displace the ovary from its normal position.

Ovarian Torsion

Large cysts can cause the ovary to twist, resulting in severe pain and reduced blood supply.

Emergency Complications

Ovarian torsion can reduce or completely stop blood flow to the ovary and requires immediate medical attention.

Frequently Asked Questions

Find answers to common questions about ovarian cysts, their symptoms, causes, types, complications, and treatment options.

Ovarian cysts are fluid-filled sacs that develop in or on the surface of an ovary. Most are harmless, cause little or no discomfort, and often disappear on their own within a few months.

While many ovarian cysts do not cause symptoms, larger cysts may lead to pelvic pain, abdominal fullness or heaviness, bloating, and discomfort. A ruptured cyst may cause sudden, severe pain.

Most ovarian cysts develop as part of the normal menstrual cycle and are called functional cysts. Other types, such as dermoid cysts, cystadenomas, and endometriomas, are less common and develop for different reasons.

Most ovarian cysts are benign and resolve without treatment. However, large, ruptured, or twisted (torsion) cysts can cause severe pain and require immediate medical attention.

No. Many ovarian cysts disappear naturally within two or three menstrual cycles. Treatment is usually recommended only if the cyst is large, persistent, causes symptoms, or appears suspicious on imaging.

Seek medical care if you experience persistent pelvic pain, abdominal bloating, sudden severe abdominal or pelvic pain, pain with fever or vomiting, or symptoms of shock such as cold, clammy skin, rapid breathing, dizziness, or weakness.