Most ovarian cysts don’t need treatment at all. The majority are functional cysts, meaning they form as a normal part of your menstrual cycle, and they resolve on their own within two to three cycles. Treatment depends almost entirely on the cyst’s size, what it looks like on ultrasound, whether you’re pre- or postmenopausal, and whether it’s causing symptoms.
Why Most Cysts Are Simply Monitored
Simple, thin-walled ovarian cysts smaller than 5 cm in premenopausal women typically disappear without any intervention. Your doctor may not even schedule a follow-up ultrasound for one this small. Cysts between 5 and 7 cm are tracked with yearly ultrasound to confirm they’re stable or shrinking. Only when a simple cyst exceeds 7 cm does surgery enter the conversation.
For postmenopausal women, the thresholds are a bit different. A simple cyst under 1 cm usually needs no follow-up imaging at all. Cysts up to 5 cm are monitored with a repeat ultrasound in 4 to 6 months, along with a blood test called CA-125 that helps screen for ovarian cancer. If the cyst hasn’t grown and the blood marker stays normal at two consecutive checks, you can typically be discharged from follow-up entirely. Even simple cysts up to 10 cm in postmenopausal women can be safely monitored without surgery, according to guidelines from the American College of Obstetricians and Gynecologists, as long as they look clearly benign on ultrasound.
What Watchful Waiting Actually Looks Like
If your cyst falls into the “watch and wait” category, the follow-up schedule depends on what type of cyst you have. A hemorrhagic cyst (one that has bled internally) larger than 5 cm gets a repeat ultrasound in 6 to 12 weeks to confirm it’s resolving. Endometriomas, sometimes called “chocolate cysts” because they contain old blood from endometriosis, are followed at least yearly if they aren’t surgically removed. Dermoid cysts, which are slow-growing masses that can contain tissue like hair or teeth, are checked every 6 to 12 months regardless of your age.
If the ultrasound shows features that don’t fit neatly into one category, such as a cyst with thin internal walls or a small soft tissue nodule, a follow-up scan in 6 to 12 weeks is standard. In some cases, an MRI is used to get a clearer picture.
Managing Pain at Home
Cysts that cause discomfort, particularly around ovulation or your period, can usually be managed with over-the-counter anti-inflammatory pain relievers like ibuprofen or naproxen. A heating pad on your lower abdomen can also help with dull, achy pelvic pain. If a cyst ruptures and your symptoms are mild (brief sharp pain that fades to soreness), home pain management is often all that’s needed.
Severe or sudden pain is a different situation. More on that below.
Birth Control: Prevention, Not Treatment
One of the most common misconceptions is that hormonal birth control will shrink an existing cyst. A 2014 Cochrane Review of eight clinical trials found no benefit of hormonal contraception over simply waiting. Cysts resolved on their own within 4 to 6 weeks at the same rate regardless of whether women took birth control pills or did nothing.
Where hormonal contraception does help is in preventing new cysts from forming. Women using hormonal birth control had a cyst incidence of about 2.4%, compared to 9.5% in women not using hormonal contraception. So if you’ve had recurrent functional cysts, your doctor may recommend birth control to reduce the chance of new ones developing. It just won’t speed up the resolution of a cyst you already have.
When Surgery Is Needed
Surgery becomes the recommended path in a few clear situations:
- Size. Simple cysts over 7 cm in premenopausal women or over 5 cm in postmenopausal women generally warrant surgical evaluation.
- Complex features. Cysts of any size that show concerning features on ultrasound, such as thick internal walls (3 mm or more), solid areas with blood flow, or irregular shapes, need further investigation. These features raise the possibility that the growth isn’t a simple cyst.
- Persistent symptoms. A cyst that causes ongoing pain, pressure, or other problems and isn’t resolving on its own may be removed even if it’s below the size threshold.
- Elevated cancer markers. In postmenopausal women, a CA-125 level at or above 35 units per milliliter combined with an abnormal ultrasound prompts referral to a specialist.
The most common procedure is an ovarian cystectomy, where the cyst is removed while preserving the ovary. In some cases, the entire ovary or ovary and fallopian tube are removed instead, particularly in postmenopausal women or when cancer risk is elevated.
Laparoscopic vs. Open Surgery
Whenever possible, surgeons use a laparoscopic approach: a few small incisions, a camera, and specialized instruments. Recovery is relatively quick. Most people return to work and light activity within one to two weeks, and resume their full routine within two to three weeks.
Open surgery, done through a larger abdominal incision, is reserved for very large cysts, suspected cancers, or cases where laparoscopy isn’t feasible. Recovery takes significantly longer, with six to eight weeks of activity restrictions. The choice between approaches is based on what your surgeon sees on imaging before the procedure and sometimes what they find once they’re operating.
Recovery After Cyst Removal
After laparoscopic surgery, you can expect some bloating and soreness around the incision sites for the first few days. Light walking is encouraged almost immediately to reduce the risk of blood clots. Most people feel ready for desk work within a week or two, though heavy lifting and vigorous exercise should wait until the two- to three-week mark or until your surgeon clears you.
Open surgery recovery is more involved. You’ll likely need help at home for the first week or two, and the full eight-week recovery period means avoiding anything that strains your abdominal muscles: lifting heavy objects, intense exercise, or physical labor.
When a Cyst Becomes an Emergency
Two complications require immediate medical attention: rupture with heavy internal bleeding and ovarian torsion, where the ovary twists on its blood supply.
Torsion causes sudden, severe pain in your lower abdomen, often on the right side, frequently accompanied by nausea and vomiting. The pain is usually sharp and stabbing, though it can be dull and crampy. It may radiate to your thighs, sides, or lower back. Fever and abnormal vaginal bleeding or discharge are signs that the ovarian tissue is losing blood flow and beginning to die. Torsion is a surgical emergency because the ovary can be saved if the twist is corrected quickly, but delay can mean losing the ovary entirely.
A ruptured cyst can range from a brief burst of pain that resolves on its own to significant internal bleeding that causes dizziness, rapid heartbeat, and fainting. If you experience sudden severe pelvic pain with any of those signs, go to the emergency room.