Problems with the colon, or large intestine, can cause pain in the lower abdomen. Possible causes include constipation, diarrhea, and a range of gastrointestinal problems such as irritable bowel disease or colitis. ... IBS may also cause: gas and bloating. constipation. diarrhea. mucus in the stool.
This article examines how disruptions in the colon may cause abdominal pain. It also looks at their causes and treatments and explains when a person should contact a doctor.
Inflammation , irritation, and obstruction in the colon can all cause pain, which a person will typically feel as abdominal pain . Possible causes of colon-related abdominal pain include constipation , irritable bowel syndrome (IBS) , and colorectal cancer .
Problems with the colon, or large intestine, can cause pain in the lower abdomen. Possible causes include constipation, diarrhea, and a range of gastrointestinal problems such as irritable bowel disease or colitis. Treatment will depend on the cause.
However, it is also possible to feel pain only in a specific spot. Some people may also feel pain in the rectum, just above the anus. This pain may feel sharp and stabbing or dull and aching.
The colon’s winding path through the abdomen can mean that a person feels pain throughout this area of the body if they experience colon disruptions.
However, irritation, inflammation, and obstructions can cause strong contractions, resulting in pain.
The colon is about 5 feet in length, and it circles through the abdomen and down to a person’s rectum. The colon contracts to move digested food and waste toward the rectum. In a healthy colon, these contractions are painless, and people rarely notice them.
Several medical conditions and temporary digestive issues can cause abdominal pain.
Constipation
When stool is too large or hard, it cannot comfortably pass out of the colon and rectum. This can cause abdominal pain and pain near the rectum and anus.
Sometimes, hard stools can cause tears in the lining of the anus, known as anal fissures. People with anal fissures may experience bleeding and pain with bowel movements.
People with constipation may need to make certain dietary adjustments to help soften the stool and allow it to pass more easily. These include:
Certain medications can also cause constipation. A person with medication-related constipation should talk with a doctor if this side effect is causing them distress.
Learn more about constipation.
Diarrhea
Diarrhea has several possible causes, including hypercontractility. This term refers to the colon contracting too often, causing watery or loose stools three or more times a day. It has a variety of possible causes, ranging from food intolerances to viruses and bacteria.
Learn more about the different causes of diarrhea.
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These fast contractions may cause abdominal pain and cramping. Loose stools may also irritate the anus, causing burning and stinging.
Diarrhea is often short-lived if a virus or food intolerance causes it. However, some bacteria and illnesses that cause diarrhea can be severe and potentially lead to dehydration.
Over-the-counter (OTC) antidiarrheal medications may help treat acute diarrhea. However, parents and caregivers should consult a doctor before giving a child OTC drugs.
Learn more about what to eat when experiencing diarrhea.
Irritable bowel syndrome
IBS is a digestive condition with symptoms that often affect the colon. IBS can cause stomach pain and cramping, usually around the time of a bowel movement.
IBS may also cause:
gas and bloating
constipation
diarrhea
mucus in the stool
Learn more about the symptoms of IBS.
No single diet or medication can cure all cases of IBS, but various lifestyle adjustments may help. These include:
eating more fiber
avoiding gluten and other known trigger foods
following a low FODMAP diet
practicing stress management techniques
keeping a food diary to identify triggers
Diverticular disease
Diverticulosis is a condition in which the colon forms small pouches, or sacs, in its walls. According to the National Institute of Diabetes and Digestive and Kidney Diseases , it affects more than 30% of adults aged 50–59 years in the United States and more than 70% of those older than 80 years.
If any of these sacs become inflamed or infected, which is known as diverticulitis, this can cause pain, bleeding, and other symptoms.
In addition to abdominal pains, diverticulitis can cause:
loose stools or diarrhea
cramping in the lower abdomen
blood in the stool
fever
nausea
vomiting
Having regular bowel movements reduces the risk of developing diverticulosis and diverticulitis. Adopting a high fiber diet, exercising often, and staying hydrated can help promote regular bowel movements.
People who have symptoms of diverticulitis should see a doctor. In rare cases, diverticulitis can lead to serious complications.
Learn more about diverticular disease.
Colitis
Colitis refers to a group of conditions that cause inflammation in the colon. These conditions include:
Ulcerative colitis: Ulcerative colitis is a type of inflammatory bowel disease (IBD) that involves chronic colon inflammation with ulcers or sores.
Ulcerative colitis is a type of inflammatory bowel disease (IBD) that involves chronic colon inflammation with ulcers or sores. Crohn’s disease: Crohn’s disease is another type of IBD. A person with Crohn’s disease will experience inflammation that can affect the entire digestive tract.
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Crohn’s disease is another type of IBD. A person with Crohn’s disease will experience inflammation that can affect the entire digestive tract. Infectious colitis: In this condition, bacteria, viruses, or parasites cause irritation and swelling of the colon.
In this condition, bacteria, viruses, or parasites cause irritation and swelling of the colon. Ischemic colitis: Ischemic colitis causes reduced blood flow to the colon, which may result in pain and damage.
Ischemic colitis causes reduced blood flow to the colon, which may result in pain and damage. Radiation colitis: Undergoing radiation therapy for cancer sometimes causes radiation colitis.
Undergoing radiation therapy for cancer sometimes causes radiation colitis. Microscopic colitis: In microscopic colitis, the inflammation is only visible upon microscopic examination of tissue samples.
Colitis can cause pain in the abdominal area. It may also cause:
bleeding in the rectum
an urgency around bowel movements
fever
unintentional weight loss
fatigue
nutritional deficiencies
mucus and blood in the stool
diarrhea or constipation
A person may need medications, IV fluids, or antibiotics to treat colitis. Severe colitis sometimes requires surgery.
Colorectal cancer
Colorectal cancer starts in the colon or rectum. It is the third most common cancer diagnosis in the U.S., excluding skin cancer.
Colorectal cancer can cause abdominal pain near the area of the colon, as well as:
changes in bowel movements, such as constipation or diarrhea
bright red blood in the stool
an urgency to have bowel movements that then do not provide relief
dark stool
fatigue
unexplained weight loss
It is important to note that many people with colorectal cancer do not experience symptoms right away. Undergoing a colonoscopy is the best way to detect colorectal cancer early.
Colorectal cancer treatment may include medications, chemotherapy, radiation therapy, and surgery.