Lower Right Abdominal Pain in Women: Causes and Warning Signs

By Your Health Magazine Health Information Team

Lower right abdominal pain in women can come from the appendix, right ovary or fallopian tube, urinary tract, or bowel. Common possibilities include appendicitis, an ovarian cyst, ovulation pain, a urinary tract infection, a kidney stone, constipation, and intestinal inflammation. Sudden or worsening pain, especially with fever, vomiting, vaginal bleeding, faintness, or a possible pregnancy, requires prompt medical evaluation.

When Lower Right Abdominal Pain May Be an Emergency

The intensity of abdominal pain does not always show how serious the cause is. Seek emergency care for:

Sudden, severe, or rapidly worsening pain
Pain accompanied by fainting, severe weakness, confusion, trouble breathing, or pale and clammy skin
A rigid, swollen, or extremely tender abdomen
Repeated vomiting or an inability to pass stool or gas
Heavy vaginal bleeding
Severe pain with fever or chills
Abdominal pain during a possible or confirmed pregnancy, particularly with vaginal bleeding, shoulder pain, dizziness, or fainting

Pregnancy-related symptoms are especially important because an ectopic pregnancy can develop outside the uterus, usually in a fallopian tube. If it ruptures, it may cause life-threatening internal bleeding.

Common Causes and Their Typical Clues

Possible cause	Common symptom pattern
Appendicitis	Pain may begin near the belly button and move to the lower right. It often worsens over several hours and may occur with nausea, loss of appetite, vomiting, or fever.
Ovarian cyst	One-sided pressure, aching, bloating, or pelvic pain. A ruptured cyst can cause sudden, sharp pain and sometimes internal bleeding.
Ovarian torsion	Sudden, severe one-sided pelvic or lower abdominal pain, often with nausea and vomiting. The pain may come and go if the ovary twists and untwists.
Ovulation or menstrual pain	Cramping related to the menstrual cycle. Ovulation pain is usually one-sided and occurs around the middle of the cycle.
Pelvic inflammatory disease	Lower abdominal pain with fever, unusual vaginal discharge, bleeding between periods, painful urination, or pain during sex.
Urinary infection or kidney stone	Burning or frequent urination suggests an infection. A stone may cause intense pain that travels from the side or back toward the lower abdomen or groin.
Bowel condition	Constipation, gas, diarrhea, bloating, or changes in bowel habits may accompany the pain.

Appendix and Digestive Causes

Appendicitis is one of the most important causes to rule out. According to the National Institute of Diabetes and Digestive and Kidney Diseases, appendicitis pain may move to the lower right abdomen, worsen with movement, coughing, or deep breathing, and become more severe within hours. Not everyone develops the classic pattern, however.

Digestive conditions such as constipation, trapped gas, viral gastroenteritis, inflammatory bowel disease, and bowel obstruction can also cause lower abdominal pain. Constipation or gas is more likely when discomfort improves after passing stool or gas. Severe swelling, repeated vomiting, or an inability to pass stool or gas may indicate an obstruction and needs urgent assessment.

Gynecologic Causes

Many ovarian cysts are small and cause no symptoms. When symptoms occur, they may include pressure, bloating, or pain on the affected side. Sudden severe pain, weakness, dizziness, fever, or vomiting may signal rupture, bleeding, or ovarian torsion.

Ovulation pain can cause a brief sharp or cramping sensation on one side around the middle of the menstrual cycle. Unlike an emergency condition, it usually follows a predictable cycle pattern and resolves within a day or two. New, persistent, or unusually severe pain should not automatically be attributed to ovulation.

Endometriosis may cause pelvic pain that becomes worse before or during menstruation. Pain during sex, bowel movements, or urination may also occur, particularly when symptoms follow the menstrual cycle. Pelvic inflammatory disease is another possibility, especially when pain occurs with fever, abnormal discharge, bleeding between periods, or pain during sex.

Urinary Tract Causes

A bladder infection can cause lower abdominal pressure or discomfort along with burning during urination, frequent urges to urinate, or cloudy or strong-smelling urine. MedlinePlus provides additional information about urinary tract infection symptoms and evaluation.

Kidney stones usually cause sharper pain in the side or back that may move into the lower abdomen or groin. The pain may come in waves and occur with nausea, vomiting, painful urination, or blood in the urine. Fever or chills with urinary or kidney-stone symptoms may indicate an infection requiring urgent care.

How the Cause Is Diagnosed

Because several organs are close together in the lower right abdomen, symptoms alone may not identify the cause. A healthcare professional may ask about:

When and where the pain started and whether it is moving
The date of the last menstrual period and whether pregnancy is possible
Vaginal bleeding, discharge, or pain during sex
Fever, nausea, vomiting, appetite, and bowel changes
Urinary frequency, burning, or blood in the urine
Previous cysts, endometriosis, abdominal surgery, or kidney stones

Evaluation may include an abdominal or pelvic examination, a pregnancy test, urine testing, blood tests, and imaging. Pelvic ultrasound is often used to examine the ovaries, uterus, and pregnancy location. CT or MRI may be considered when appendicitis, kidney stones, or bowel disease is suspected. An imaging report may also mention pelvic fluid; the significance depends on the amount, timing in the menstrual cycle, and other findings. Learn more about what free fluid in the pelvis can mean.

When to Seek Care

Go to an emergency department for severe or rapidly worsening pain, fainting, repeated vomiting, a rigid abdomen, heavy bleeding, or symptoms suggesting ectopic pregnancy, ovarian torsion, or appendicitis. Contact a primary care clinician, urgent care center, or obstetrician-gynecologist promptly when pain is persistent, repeatedly returns, interferes with normal activity, or occurs with urinary, menstrual, vaginal, or bowel changes.

This information is for general education and cannot determine the cause of an individual’s abdominal pain. A physical examination and appropriate testing may be necessary to distinguish a temporary condition from one requiring urgent treatment.