9 most common cause(s)
Pain in lower right abdomen symptoms
The abdomen, otherwise known as your "belly," is the area of your body running from just beneath your breast bone down to just above your pelvis. It contains several important organs, such as your intestines. If these organs become infected or irritated, they generally cause pain. The abdomen can be separated into four quadrants. Your "lower right abdomen" is the area below your belly button and to the right of your body.
People usually think they have appendicitis when they have pain in this area. There are a number of other causes of lower right abdominal pain that can also be life-threatening. However, most abdominal pain spontaneously resolves without intervention. You know your body better than anyone, so if something is truly bothering you, consult your physician.
Common accompanying symptoms of lower abdominal pain
If you're experiencing lower right abdominal pain you may also experience:
- Fever
- Chills
- Poor food tolerance
- Nausea and vomiting
- Diarrhea
- Lightheadedness
- Change in stool output or consistency
- Bloody stools
What can cause pain in the lower right side abdomen?
Abdominal causes
Abdominal causes may be a result of digestive processes.
- Gas: The build-up of large amounts of gas in your large intestine can cause pain and discomfort as the large intestine becomes distended.
- Obstruction: Various diseases may cause your bowels to become stuck together or twisted, leading to pain as food or stool cannot move through.
- Constipation: Long periods of constipation can cause significant abdominal pain.
- Trauma: Traumatic injury can damage the organs in your abdomen.
Inflammatory causes
Inflammation of the bowels or organs of the abdomen may result in pain.
- Infection: If your appendix becomes infected, or you develop intestinal outpouchings called "diverticula," this can result in fever and pain. Diarrhea can also cause pain.
- Autoimmune: In autoimmune disease, your immune cells may inadvertently attack those of your GI tract, causing damage and pain.
Other causes
Other causes may result in abdominal pain, such as the following.
- Tumors: Tumors of the gastrointestinal tract can grow and cause irritation by blocking the passage of stool.
- Urinary: Certain urologic conditions such as kidney stones can cause pain which shoots to the right lower quadrant.
- Reproductive: In women, masses or infections of the reproductive organs can cause lower right abdominal pain.
- Poor blood flow: Poor blood flow can cause pain in your right lower abdomen as the organs there signal for help.
Urinary tract infection
A urinary tract infection, or UTI, can involve any or all parts of the urinary system but most often affects the bladder and urethra.
Bacteria from the gastrointestinal tract – especially Escherichia coli (E. coli) – are the most common cause of UTIs. These bacteria spread from the anus to the urethra. Sexual activity can do this, but a UTI is not considered a sexually transmitted disease.
Women are more at risk for UTI than men. Due to female anatomy, the urethral opening is a short distance from the anus. Anyone who uses catheters to urinate is also prone to UTIs.
Common symptoms of less-serious UTIs include lower abdominal discomfort and pressure; burning or discomfort on urination; and cloudy or discolored urine.
Left untreated, the infection could spread to the kidneys and cause a medical emergency.
Diagnosis is made by having the patient describe the symptoms and by testing a urine sample for bacteria.
UTIs are caused by bacteria and so can be treated with antibiotics.
Prevention involves good hygiene and drinking plenty of water.
Possible pregnancy
The earliest sign of a pregnancy is typically a missed period, but many women do experience symptoms shortly after conception:
- Implantation bleeding may occur after six to twelve days, when the fertilized egg implants itself into the lining of the uterus. This can cause mild cramping with light bleeding or spotting.
- Fatigue and increased desire to sleep may happen within a week.
- Breast tenderness can start as soon as one to two weeks.
- Nausea ("morning sickness") can occur after two to eight weeks.
If pregnancy is suspected, testing should be done so that proper prenatal care can begin. It's important to avoid some behaviors during pregnancy, such as drinking alcohol or using certain drugs or medications, so an early diagnosis should be made.
Over-the-counter home pregnancy tests are available at any drugstore. A positive test is almost certainly correct, but a negative test in the face of other symptoms may be a false negative and should be tried again after a week.
Rarity: Common
Top Symptoms: fatigue, nausea or vomiting, stomach bloating, bloody vaginal discharge, vaginal bleeding
Symptoms that always occur with possible pregnancy: missed period
Symptoms that never occur with possible pregnancy: painful urination, severe abdominal pain
Urgency: Self-treatment
Pelvic inflammatory disease
Pelvic inflammatory disease, or PID, is the general term for a bacterial infection of a woman's reproductive organs.
PID is most often a complication of a sexually transmitted disease (STD) such as gonorrhea or chlamydia. However, it is possible to get PID from other causes.
Any woman can be affected. It is most often found in sexually active women under age 25, especially those who have had PID before, have multiple partners, and/or douche frequently.
Symptoms include fever, lower abdominal pain, foul-smelling vaginal discharge, pain and/or bleeding during sex, and pain on urination.
Untreated PID can cause infertility due to damaged tissue in the reproductive tract, as well as chronic pelvic and abdominal pain. Unprotected sex partners will be infected as well.
Diagnosis is made through symptoms, pelvic examination, vaginal and cervical swabs, and urine tests.
Treatment is with a course of antibiotics. Be sure to finish all of the medication as directed, even when you begin feeling better.
To prevent PID, have all partners (male or female) tested for STDs and avoid unprotected sexual contact.
Rarity: Common
Top Symptoms: fever, abdominal pain or unusual vaginal discharge, vaginal discharge, nausea or vomiting, vaginal bleeding, pelvis pain
Symptoms that always occur with pelvic inflammatory disease: fever, abdominal pain or unusual vaginal discharge
Urgency: In-person visit
Ovulation pain (mittelschmerz) or midcycle spotting
Mittelschmerz is a German word that translates as "middle pain." It refers to the normal discomfort sometimes felt by women during ovulation, which is at the midpoint of the menstrual cycle.
Each month, one of the two ovaries forms a follicle that holds an egg cell. The pain occurs when the follicle ruptures and releases the egg.
This is a dull, cramping sensation that may begin suddenly in only one side of the lower abdomen. In a few cases, there may be vaginal spotting. Mittelschmerz occurs about 14 days before the start of the next menstrual period.
Actual Mittelschmerz is not associated with nausea, vomiting, fever, or severe pelvic pain. These symptoms should be evaluated by a medical provider since they can indicate a more serious condition.
Diagnosis is made through patient history.
Treatment requires only over-the-counter, nonsteroidal anti-inflammatory drugs to relieve the pain. An oral contraceptive will stop the symptoms, since it also stops ovulation.
Rarity: Common
Top Symptoms: abdominal pain (stomach ache), last period approximately 2 weeks ago, vaginal bleeding, bloody vaginal discharge, pelvis pain
Symptoms that always occur with ovulation pain (mittelschmerz) or midcycle spotting: last period approximately 2 weeks ago
Urgency: Self-treatment
Ovarian torsion
Ovarian torsion, also called adnexal torsion or tubo-ovarian torsion, is the twisting of the "stem," or supporting fleshy pedicle, of the ovary.
This condition can occur when a mass forms on the surface of the ovary and pulls it over. This is most often a complication of cystic ovaries.
It is most common in women under thirty or past menopause. It can occur during pregnancy.
Symptoms include severe, one-sided, lower abdominal pain with nausea and vomiting.
Diagnosis is made by ultrasound. The ovary will appear enlarged due to the torsion cutting off the circulation. There will be free pelvic fluid and a twisted pedicle.
Ovarian torsion is a medical emergency. The ovary can die due to loss of circulation, causing infection, abscess, or peritonitis. Surgery must be done to prevent tissue death and subsequent complications. In the majority of cases the affected ovary must be removed, which also removes the cyst or mass that caused the torsion.
Proper treatment of polycystic ovary syndrome (PCOS) can help prevent at least one cause of ovarian torsion.
Rarity: Rare
Top Symptoms: abdominal pain (stomach ache), nausea or vomiting, nausea, moderate abdominal pain, loss of appetite
Symptoms that never occur with ovarian torsion: diarrhea, pain below the ribs, mild abdominal pain
Urgency: Hospital emergency room
Ovarian cyst
During her reproductive years, a woman's ovaries release a single egg cell each month. But sometimes the egg remains on the surface of the ovary, where the follicle that enclosed it continues to grow. It then becomes a fluid-filled ovarian cyst.
Ovarian cysts may be caused by hormonal imbalances; by endometriosis tissue, if it attaches to the ovary; and by severe pelvic infections that spread to the ovaries. Cysts may also form during pregnancy.
Small ovarian cysts often cause no symptoms. Larger cysts may cause pelvic pain, backache, unexplained weight gain, abnormal vaginal bleeding, and/or pain during sex. Ovarian cysts are almost never a form of cancer.
Sudden, severe abdominal pain could indicate a ruptured cyst. This is a medical emergency and the patient should go to an emergency room or call 9-1-1.
Diagnosis is made through ultrasound.
Hormonal birth control, such as the pill, injection, or patch, prevents ovulation and therefore prevents the formation of cysts. Surgery to remove the cyst may be necessary in some cases.
Rarity: Rare
Top Symptoms: stomach bloating, vaginal bleeding, pelvis pain, lower abdominal pain, lower back pain
Urgency: Primary care doctor
Normal variation of constipation
Constipation means bowel movements which have become infrequent and/or hardened and difficult to pass.
There is wide variation in what is thought "normal" when it comes to frequency of bowel movements. Anywhere from three times a day to three times a week is considered normal.
As long as stools are easy to pass, laxatives should not be used in an effort to force the body to a more frequent schedule.
Constipation is usually caused by lack of fiber in the diet; not drinking enough water; insufficient exercise; and often suppressing the urge to have a bowel movement.
A number of medications and remedies, especially narcotic pain relievers, can cause constipation.
Women are often affected, due to pregnancy and other hormonal changes. Young children who demand low-fiber or "junk food" diets are also susceptible.
Constipation is a condition, not a disease, and most of the time is easily corrected. If simple adjustments in diet, exercise, and bowel habits don't help, a doctor can be consulted to rule out a more serious cause.
Rarity: Common
Top Symptoms: abdominal pain (stomach ache), nausea, stomach bloating, constipation, constipation
Symptoms that always occur with normal variation of constipation: constipation
Symptoms that never occur with normal variation of constipation: vomiting
Urgency: Self-treatment
Intestinal inflammation (diverticulitis)
When the passage of food through the colon becomes sluggish, the food can stagnate, increase in bulk, create pressure, and cause diverticula – or pouches – to form in the walls of the large intestine. If these pouches become inflamed, the condition is called diverticulitis.
Risk factors are a low-fiber diet, smoking, obesity, chronic constipation, and lack of "good" bacteria in the gut.
Patients over 50, with a previous history of inflammatory disease of the colon, are most susceptible.
Symptoms include persistent abdominal pain; fever; nausea and vomiting; and constipation sometimes alternating with diarrhea.
Left untreated, diverticulitis can lead to intestinal blockage and scarring. Rupture of an inflamed pouch can result, leading to peritonitis. These are medical emergencies. If suspected, take the patient to the emergency room or call 9-1-1.
Diagnosis is made by ruling out other conditions through physical examination; blood, urine, and stool tests; and CT scan.
Less serious cases are treated with a high-fiber diet, fluids, probiotics, antibiotics, and lifestyle management. Others may require intravenous antibiotics and/or surgery.
Rarity: Uncommon
Top Symptoms: abdominal pain (stomach ache), nausea, loss of appetite, diarrhea, constipation
Symptoms that never occur with intestinal inflammation (diverticulitis): pain below the ribs, pain in the upper right abdomen
Urgency: Hospital emergency room
Appendicitis
Appendicitis is an inflammation of the appendix, the small, finger-shaped pouch projecting off the colon on the lower right side of the abdomen.
The inflammation is caused by anything blocking or irritating the appendix opening or walls, such as hard stool or damage from other bowel disease. The blocked appendix can quickly swell with bacteria and pus.
Appendicitis is most common from ages 13-30, but can happen to anyone.
Symptoms include sudden, severe pain in the abdomen that begins near the navel and soon moves to the lower right side. There may be low-grade fever; nausea and vomiting; feeling bloated; and constipation or diarrhea.
If not treated, an infected appendix can rupture and cause a life-threatening infection of the abdomen called peritonitis. This is why appendicitis is a medical emergency. If suspected, take the patient to the emergency room or call 9-1-1.
Diagnosis is made through patient history, physical examination, blood and urine tests, and imaging such as ultrasound or x-ray.
An inflamed appendix must be surgically removed as soon as possible.
Lower right abdominal pain - when you can treat at home & when it's an emergency
Even though your pain may be concerning, pain in the lower right abdomen often resolves on its own, especially when caused by gas. You should seek care from a doctor if your pain worsens or persists.
At-home treatments
You can begin treating your abdominal pain at home with the following measures:
- Rest: Some types of abdominal pain are temporary and will self-resolve if you take it easy and relax for a bit.
- Hydration: Eating and drinking may be more difficult than usual with severe abdominal pain. You should carefully monitor your water intake to make sure you are getting enough.
- Food: It is not advisable to eat a large meal when your stomach hurts. Take it slow with small portions of easily digestible food until you are feeling better.
Here are some over-the-counter (OTC) options that may help manage your symptoms until you can consult with a healthcare provider:
- Pain Relief: For general discomfort, an analgesic like acetaminophen can be useful. It helps reduce pain without causing stomach upset.
- Antacids: If your pain is accompanied by indigestion or heartburn, consider using an antacid to help manage stomach acidity and discomfort.
- Heating Pads: Applying heat can help relieve pain or cramps in the abdominal area.
Medical treatments
Medical treatments that may be required for abdominal pain may include:
- Imaging and blood tests: Doctors may order imaging or other tests to help diagnose the cause of your abdominal pain.
- Endoscopy: Doctors may use a special camera (scope) to look at the inside of your digestive tract.
- IV fluids: If you are dehydrated or are unable to keep down liquids, you will be given fluids through an IV. You may also receive certain electrolytes like potassium if your level is low.
- Medication: You may be offered pain medication, anti-nausea medication, or antibiotics. Some causes of abdominal pain can be treated effectively with medications.
- Surgery: Certain causes of abdominal pain require rapid intervention to resolve.
When lower right abdominal pain is an emergency
You should seek help without delay if you have:
- Abdominal pain which starts centrally and moves to the lower right
- Sudden-onset of severe abdominal pain
- Severe abdominal pain worsened by light touch (palpation) or slight movement
- Inability to keep down fluids for a prolonged period
- High fever
- Recent abdominal surgery
- Severe confusion, dizziness, or loss of consciousness
- If you are of old age: Or you have another serious medical condition
- Are known to be pregnant: Or even if you have the possibility of being pregnant
Lower right abdominal pain treatment quiz
Take a quiz to find out how to treat your symptoms.
Questions your doctor may ask about pain in the lower right abdomen
- Have you experienced any nausea?
- Any fever today or during the last week?
- Have you lost your appetite recently?
- How would you describe the nature of your abdominal pain?
Self-diagnose with our free Buoy Assistant if you answer yes on any of these questions.
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