Ovarian Cysts Symptoms
Most cysts don't cause any symptoms and go away on their own. A large ovarian cyst can cause abdominal discomfort. If a large cyst presses on your bladder, you may feel the need to urinate more frequently because bladder capacity is reduced.
The symptoms of ovarian cysts, if present, may include:
- Menstrual irregularities
- Pelvic pain — a constant or intermittent dull ache that may radiate to your lower back and thighs
- Pelvic pain shortly before your period begins or just before it ends
- Pelvic pain during intercourse (dyspareunia)
- Pain during bowel movements or pressure on your bowels
- Nausea, vomiting or breast tenderness similar to that experienced during pregnancy
- Fullness or heaviness in your abdomen
- Pressure on your rectum or bladder that causes a need to urinate more frequently or difficulty emptying your bladder completely
Ovarian Cysts Causes
Most ovarian cysts start during the normal function of your menstrual cycle. These are known as functional cysts. Other types of cysts are much less common.
Your ovaries normally grow cyst-like structures called follicles each month. Follicles produce the hormones estrogen and progesterone and release an egg when you ovulate. Sometimes a normal monthly follicle just keeps growing. When that happens, it becomes known as a functional cyst. There are two types of functional cysts:
- Follicular cyst. Around the midpoint of your menstrual cycle, an egg bursts out of its follicle and begins its journey down the fallopian tube in search of sperm and fertilization. A follicular cyst begins when something goes wrong and the follicle doesn't rupture or release its egg. Instead it grows and turns into a cyst.
- Corpus luteum cyst. When a follicle does release its egg, the ruptured follicle begins producing large quantities of estrogen and progesterone in preparation for conception. This changed follicle is now called the corpus luteum. Sometimes, however, the escape opening of the egg seals off and fluid accumulates inside the follicle, causing the corpus luteum to expand into a cyst.
The fertility drug clomiphene (Clomid, Serophene), which is used to induce ovulation, increases the risk of a corpus luteum cyst developing after ovulation. These cysts don't prevent or threaten a resulting pregnancy.
Functional cysts are usually harmless, rarely cause pain, and often disappear on their own within two or three menstrual cycles.
