Ovarian cysts are remarkably common. The Office on Women’s Health notes that many women develop at least one ovarian cyst during their lifetime, with most forming during the childbearing years. Despite how frequently they occur, many people are unfamiliar with the symptoms of ovarian cysts and may not recognize when their body is signaling a problem. Understanding what to look for – and which symptoms are true emergencies – can help you tell routine cysts from those that need medical evaluation right away.
Emergency warning signs – call 911 or go to the nearest emergency room now if you have:
- Sudden, severe pelvic or lower-abdominal pain – this can signal a ruptured cyst or a twisted ovary.
- Sudden severe pain on one side with nausea or vomiting – a possible sign of ovarian torsion, a surgical emergency in which the ovary twists and loses its blood supply.
- Fever together with pelvic pain – which may indicate infection.
- Faintness, dizziness, weakness, rapid breathing, or a racing heartbeat – which can be signs of internal bleeding or shock.
Do not wait to see if the pain passes. Ovarian torsion needs urgent surgery to save the ovary, and internal bleeding can be life-threatening.
What Are Ovarian Cysts?
Ovarian cysts are fluid-filled sacs that develop on or inside an ovary. Most are functional cysts, meaning they form as a normal part of the menstrual cycle. Follicular cysts occur when a follicle does not release an egg and continues to grow, while corpus luteum cysts form when the follicle seals off after releasing an egg and fills with fluid.
Other types include dermoid cysts (which can contain tissue such as hair, skin, or teeth), endometriomas (associated with endometriosis), and cystadenomas (which develop from ovarian tissue and may fill with watery or mucous material). While most ovarian cysts are benign and resolve without treatment, some types can grow large, cause significant symptoms, or – in relatively rare cases – point to a more serious condition.
The American College of Obstetricians and Gynecologists (ACOG) notes that functional cysts are the most common type and rarely require treatment. However, persistent or atypical cysts may need monitoring, imaging, or surgical evaluation.
Common Symptoms of Ovarian Cysts
Many ovarian cysts produce no symptoms at all and are discovered incidentally during a pelvic exam or an imaging study performed for another reason. When symptoms do appear, they often develop gradually and can be mistaken for other conditions.
Pelvic pain is the hallmark symptom. This may present as a dull, persistent ache on one side of the lower abdomen, or it can feel like a sharp, sudden pain if the cyst ruptures or twists. The pain may come and go and often intensifies during menstruation or sexual intercourse. Some people describe it as a heaviness or pressure in the pelvis rather than pain.
Bloating and abdominal swelling are also frequently reported symptoms of ovarian cysts, particularly when cysts grow large. You may notice your clothes fitting differently around the waist even without weight gain. This bloating can be accompanied by a feeling of fullness or pressure in the lower abdomen that does not improve with dietary changes.
Additional Symptoms to Watch For
Beyond pain and bloating, ovarian cysts can cause a range of other symptoms. Changes in menstrual patterns – including irregular periods, heavier or lighter flow than usual, or spotting between periods – may occur, though many things can affect periods, so this alone does not mean you have a cyst.
Frequent urination or difficulty fully emptying your bladder can occur when a large cyst presses on the bladder. Similarly, constipation or changes in bowel habits may develop if a cyst puts pressure on the rectum. Some people also experience lower back pain or thigh pain radiating from the affected side.
Nausea, breast tenderness, and a sensation of pressure during bowel movements are less common but still recognized symptoms of ovarian cysts. If you experience any combination of these symptoms – particularly if they persist for more than a few weeks – scheduling an evaluation with your healthcare provider is a reasonable next step. Persistent bloating, feeling full quickly, and pelvic or abdominal pain can occasionally be symptoms of ovarian cancer as well, which is another reason not to ignore symptoms that stick around.
Symptoms of a Ruptured Ovarian Cyst
When an ovarian cyst ruptures, it can release fluid into the pelvic cavity, causing sudden and sometimes severe pain. The pain typically begins on the side of the affected ovary and may spread across the lower abdomen. A ruptured cyst can also cause light vaginal bleeding or spotting.
Many ruptured cysts resolve on their own with rest and over-the-counter pain medication. However, in some cases a ruptured cyst can cause internal bleeding that requires urgent medical attention. Warning signs of a more serious rupture include intense or worsening pelvic pain, dizziness, lightheadedness, a rapid heartbeat, and feeling faint. If you have those symptoms, treat it as an emergency and get care immediately rather than waiting it out.
Symptoms of Ovarian Torsion
Ovarian torsion occurs when a cyst causes the ovary to twist on its supporting ligaments, cutting off its blood supply. This is a medical emergency that requires prompt surgical treatment to try to save the ovary. Torsion is more likely with larger cysts, typically those over about 5 centimeters in diameter.
The symptoms of torsion include sudden, intense, one-sided pelvic pain that may come in waves, often along with nausea and vomiting. The pain is frequently severe enough that it is hard to find a comfortable position. Unlike the dull ache of an uncomplicated cyst, torsion pain tends to be sharp and unrelenting.
According to the Mayo Clinic and other gynecologic sources, torsion is an uncommon but important cause of gynecologic emergencies. If you suspect torsion based on sudden severe pain, seek emergency care immediately – do not try to wait for it to settle. Early surgery offers the best chance of preserving the affected ovary, because the longer blood flow is cut off, the more likely the ovary is to be permanently damaged.
When to See a Doctor (Non-Emergency)
Not every ovarian cyst requires intervention, but certain symptoms warrant a non-urgent visit to your healthcare provider. Schedule an appointment if you experience persistent pelvic pain lasting more than a few days, bloating that does not improve, noticeable changes in your menstrual cycle, or pain during intercourse that is new or worsening. Trust your instincts: if something feels off and lingers, it is reasonable to get it checked.
Your doctor will likely perform a pelvic exam and order an ultrasound to evaluate the size, type, and characteristics of the cyst. Blood tests, including a CA-125 level in certain situations, may be ordered to help characterize the cyst further, though CA-125 can be raised for many benign reasons and is interpreted in context. Many simple cysts are managed with watchful waiting and a repeat ultrasound after a few weeks to confirm they resolve.
People who are postmenopausal should take ovarian cysts more seriously, as the risk of malignancy increases after menopause. Any new ovarian cyst discovered after menopause should be evaluated by a gynecologist, who may refer you to a gynecologic oncologist if the cyst has concerning features on imaging. For more information on related conditions, see our medical conditions guide.
Diagnosis and Treatment Options
Transvaginal ultrasound is the primary imaging tool for evaluating ovarian cysts. It can determine cyst size, whether the cyst is simple (fluid-filled) or complex (containing solid components), and whether it appears benign or warrants further workup. MRI may be used for cysts that are difficult to characterize on ultrasound.
Treatment depends on the type, size, and symptoms of the cyst, as well as your age and reproductive goals. Small, asymptomatic functional cysts often resolve within one to three menstrual cycles and require only monitoring. Hormonal birth control may be recommended to help prevent new functional cysts from forming, though it does not shrink an existing cyst.
Surgical removal is considered for cysts that are large, persistent, symptomatic, or have concerning features on imaging. Laparoscopic (minimally invasive) cystectomy is the preferred approach for benign cysts because it removes the cyst while preserving the ovary. In the less common situations where cancer is suspected, a more extensive surgical approach may be necessary, and care is usually guided by a gynecologic oncologist.
If you have symptoms that might indicate another condition, learning about what a hernia feels like or when to worry about swollen lymph nodes can help you tell overlapping symptoms apart – but a clinician is the one who can actually sort out the cause.
Frequently Asked Questions
Can ovarian cysts go away on their own?
Yes. Most functional ovarian cysts resolve on their own within one to three menstrual cycles without treatment. Your doctor may recommend a follow-up ultrasound to confirm the cyst has resolved. Non-functional cysts, such as endometriomas or dermoid cysts, are less likely to disappear on their own and may need ongoing monitoring or surgical removal.
Can you feel an ovarian cyst by pressing on your abdomen?
Small cysts are not typically felt from the outside. Very large cysts may cause visible or palpable abdominal swelling, and a clinician can sometimes detect a cyst during a pelvic exam. Do not try to diagnose yourself by pressing hard on your abdomen; if you are concerned, see a healthcare provider for a proper exam and imaging.
Do ovarian cysts affect fertility?
Most ovarian cysts do not affect fertility. Functional cysts are a normal part of ovulation and usually do not interfere with conception. However, endometriomas associated with endometriosis can impair fertility, and polycystic ovary syndrome (PCOS) – a condition characterized by hormonal imbalance and multiple small follicles – is a leading cause of ovulation-related infertility. Talk to your doctor if you have concerns about how ovarian cysts may affect your ability to conceive.
What is the difference between an ovarian cyst and ovarian cancer?
The vast majority of ovarian cysts are benign. Ovarian cancer is far less common; the American Cancer Society estimates a woman’s lifetime risk of getting ovarian cancer at roughly 1 in 78. Features that raise concern for malignancy include solid components within the cyst, irregular borders, fluid in the abdomen (ascites), and, in some cases, elevated tumor markers. Your doctor weighs these factors together when deciding how to manage a cyst.
How do I know if my pelvic pain is an emergency?
Sudden, severe pelvic pain – especially with nausea, vomiting, fever, dizziness, fainting, or rapid breathing – should be treated as an emergency, because it can signal a ruptured cyst with internal bleeding or ovarian torsion. Call 911 or go to the emergency room. A mild ache that comes and goes with your cycle is usually less urgent, but persistent or worsening pain deserves a call to your clinician.
TL;DR: Most ovarian cysts are harmless and cause no symptoms. When symptoms appear, watch for one-sided pelvic pain or pressure, bloating, and changes in your periods. The red flags that mean call 911 or go to the ER are sudden severe pelvic pain (possible rupture), sudden severe one-sided pain with nausea or vomiting (possible ovarian torsion, a surgical emergency), fever with pelvic pain, and faintness, dizziness, or rapid breathing (possible internal bleeding). See a gynecologist for pain or bloating that persists, new menstrual changes, or any new cyst after menopause.
This article is for general education only and is not medical advice. It cannot diagnose your condition or replace evaluation by a qualified clinician. If you have emergency warning signs, call 911 or go to the nearest emergency department.
The Bottom Line
The symptoms of ovarian cysts range from completely absent to severely painful, depending on the type, size, and any complications that develop. Pelvic pain, bloating, menstrual changes, and urinary frequency are the most common signs. While most cysts are harmless and resolve on their own, sudden severe pain, dizziness, or signs of shock require emergency medical attention – and sudden severe one-sided pain with nausea and vomiting may mean ovarian torsion, which needs urgent surgery. Regular pelvic care and prompt evaluation of persistent symptoms give you the best chance of catching any problems early and protecting your reproductive health.