IBS: When To Contact Your Doctor

Irritable Bowel Syndrome (IBS): When to Contact Your Doctor

Irritable bowel syndrome (IBS) is common and often interferes with a person’s quality of life. However, symptoms of IBS suggesting serious causes are uncommon.

Goodpath is able to help most people with IBS. A person completes our assessment. They answer questions about their symptoms, health history, and lifestyle. Based on their answers, they receive a personalized plan.

There are times when a person’s IBS assessment answers suggest something else. Certain responses mean a person should make an appointment with their doctor, make a same-day (urgent) appointment with their doctor, or get emergency medical care (this is rare). 

When IBS Symptoms May Be Serious: Causes, Conditions, and Other Factors

Medical experts recommend people should contact their doctors when they have IBS symptoms along with certain signs and symptoms, a history of specific medical problems, or the presence of other factors.

1. Sudden, Extreme Change in IBS Symptoms

Goodpath’s Recommendation

If abdominal pain symptoms suddenly become much worse, then a person should get immediate medical care.

If an extreme change of any of the other symptoms occurs, a person should contact their doctor. 

Symptoms of IBS often change over time. However, people with IBS become familiar with their usual symptoms - the type (diarrhea, constipation, both diarrhea and constipation) and frequency of bowel movements, the type or level of pain, and whether or not they have other symptoms.

A person who has a sudden, extreme change in their IBS symptoms should contact their doctor. Depending on the symptoms, they should contact their doctor’s office for an appointment, request an urgent appointment, or get emergency care.


An extreme change means symptoms of IBS suddenly change or become much worse. This may be due to the IBS or it may be from a new and unrelated problem. 

As you likely know, the symptoms of IBS include: belly (abdominal) discomfort or pain; diarrhea, constipation, or diarrhea and constipation; bloating; gas; incomplete bowel movements; and mucus in the stool. 

Likely Course

The doctor will ask about the symptoms and examine the person, including feeling the abdomen. They may order imaging and lab tests.

Depending on the results of the testing, the doctor may prescribe medicine, suggest lifestyle changes, or refer the person to a gastrointestinal specialist (gastroenterologist). A referral to a surgeon might also be necessary.

2. IBS Diagnosis & Treatment, Without Improvement

Goodpath’s Recommendation

A person should see their doctor if they have been following a prescribed treatment plan for 3 months without any improvement.


Continued or worsening IBS symptoms of: diarrhea, constipation, diarrhea and constipation; abdominal discomfort or pain; bloating; gas; incomplete bowel movements; or mucus in the stool. 

Likely Course

The doctor will ask questions about the IBS symptoms and compare them to notes from previous visits. They will also examine the person, checking their abdomen. Lab or imaging tests may be ordered.

The doctor may recommend that they continue with their current treatment. Or, they may change it, or add something else. They may also refer the person to a specialist for further evaluation and treatment. A follow-up visit will be scheduled.

3. Acute (Sudden), Severe Abdominal Pain

Goodpath’s Recommendation

Anyone with severe abdominal pain should get medical care right away. A person may need to go to a nearby emergency department or call for emergency help.

The pain may have many causes. It may be from a problem with one of the organs of the gastrointestinal (GI) system - for example, the intestines, appendix, gallbladder, or pancreas. Or it may be from a problem with organs in other body systems - for example, the fallopian tubes or uterus, the kidneys, or the aorta.


This type of pain is acute which means it starts suddenly - over minutes or hours. It is the type of pain that makes it difficult to talk, move, and breathe. And, it doesn’t lessen or stop.

Other symptoms may include: changes in bowel movements; prolonged vomiting; fever; jaundice (yellowed skin); lightheadedness, fainting, or passing out; and signs or symptoms of blood loss (for example, bloody or very dark stool; low red blood cell count or anemia).

Likely Course

The doctor will ask questions about the pain, including the location and type, and perform an exam. They will also ask about the person’s medical history to help figure out the cause. With pain this severe, a person may be given short-term pain medicine. The person will have imaging and laboratory tests. 

The doctor may refer the person to a specialist (e.g. a gastroenterologist or surgeon), depending on the likely cause of the pain.

Treatment depends on the diagnosis. It may include additional pain or other medicines, changes in diet, procedures, and hospitalization.

Surgery is also a possibility. In the U.S., about 1 out of 10 people who go to an emergency department for severe abdominal pain require surgery.

4. Acute (Sudden), Severe Diarrhea

Goodpath’s Recommendation

A person should contact their doctor for an urgent appointment if they have acute, severe diarrhea.

Diarrhea means a person has: loose or watery bowel movements, increased frequency of bowel movements (at least 3 or more times in 24 hours), or both.

With IBS

As you may know, diarrhea is a common symptom of IBS. A person with IBS knows their usual symptoms, including how much and how often they have diarrhea. 

If diarrhea suddenly becomes worse, especially with other new or worsening symptoms, it may mean something else, such as an infection or medicine side effects. 

Without IBS

If acute, severe diarrhea occurs in a person who does not have IBS, it may mean an infection, medicine side effects, or another condition (including a new diagnosis of IBS).

There are risk factors for acute, severe diarrhea such as: taking antibiotic medicine; recent travel or hospitalization; or eating/drinking unclean food/water.

There are other risk factors that can make acute diarrhea more severe. For example, a suppressed immune system (which may be from medicines to treat cancer, an autoimmune condition, etc.).

Other Serious Symptoms

Again, other symptoms may occur with acute, severe diarrhea. They mean something other than IBS. The symptoms include: fever, worsening or new mucus with bowel movements, bloody bowel movements, dark urine, and lightheadedness when changing positions (for example, sitting to standing). 

Likely Course

The doctor will ask questions about the person’s medical history and current symptoms. They may refer the person to a gastroenterologist. They will usually order lab tests to check the stool.

Treatment usually includes fluids to replace lost fluids. Medicines to lessen diarrhea or treat an infection may be prescribed.

5. Malabsorption Syndrome: Celiac Disease

Goodpath’s Recommendation

A person with symptoms of malabsorption should contact their doctor for an appointment.

Malabsorption is a problem with a person’s intestines that result in trouble digesting or absorbing nutrients (fats, carbohydrates, proteins, vitamins, minerals, and trace elements). 

Malabsorption syndrome is a group of symptoms that occur together, one of which is malabsorption. One of these syndromes is celiac disease.

Celiac disease is an autoimmune disease, meaning a person’s immune system causes it.  It is a  problem with gluten, a protein found in foods with wheat, barley, and rye. If untreated, celiac disease damages the small intestine.

A risk factor for malabsorption syndrome is having a family history of malabsorption. Celiac disease is also more common in those with IBS, diarrhea type, or mixed type compared to IBS, constipation type.


The symptoms of malabsorption include: long-term (chronic) diarrhea; gas; bloating; abdominal pain; weight loss; and stool changes (pale color and bad odor).

Symptoms affecting other body systems and organs may occur in celiac disease or some of the other malabsorption syndromes - for example, anemia, tiredness, skin problems, or weakened bones.

Likely Course

The doctor will ask the person questions about GI symptoms and diet. They may order diagnostic tests or refer the person to a gastroenterologist. Avoiding foods that cause symptoms is the main part of treatment.

6. Inflammatory Bowel Disease (IBD)

Goodpath’s Recommendation

A person who has symptoms of IBD should contact their doctor for an appointment.

Inflammatory bowel disease (IBD) is a serious, chronic condition affecting the GI tract. The two common types of IBD are Crohn’s disease and ulcerative colitis. Both conditions involve inflammation (the body’s reaction to disease or injury). They may get worse over time and often have periods where symptoms increase or decrease.

  • Crohn’s disease affects the lining and deeper layers of the small intestine or both the small and large intestines.

  • Ulcerative colitis affects the lining of the large intestine and rectum.

Having a close family member with IBD increases the risk of developing it.


Both conditions have symptoms that are similar to IBS, but both have additional unique symptoms.

The symptoms of inflammatory bowel disease that are like IBS include diarrhea; abdominal discomfort and pain; bloating; gas; incomplete bowel movements; and mucous in the stool. A person with IBD may have symptoms that interfere with sleep.

Other symptoms of IBD that are not common in IBS are rectal bleeding; fever; weight loss (more than 5.0% of body weight); and feeling tired. There may also be symptoms affecting other body organs and systems such as the eyes, joints, skin, mouth, and blood.

Likely Course

A person with symptoms of IBD is usually referred to a gastroenterologist. The doctor will ask about medical history, current symptoms, and complete an exam. The person will have tests, including diagnostic sigmoidoscopy or colonoscopy (using a scope to view the colon), upper GI testing, other imaging, and blood and stool tests.

If test results show IBD, medicines are prescribed to control symptoms. Changing the diet and surgery are other possible treatments. Based on the advice of their doctor, a person with IBD should have more frequent colorectal cancer screening colonoscopies than those at average risk.

7. Colorectal Cancer

Goodpath’s Recommendation

A person with symptoms of colorectal cancer should contact their doctor for an appointment.

Those with an increased risk of colorectal cancer should talk with their doctor about their specific risk, as well as recommendations for frequency and type of testing.

In general, a person has a small risk of developing colorectal cancer. Individuals with colorectal cancer may not have symptoms or may have minor symptoms. Thus, colorectal cancer screening is recommended for those at average risk, beginning at age 40-50 (at age 45 in the U.S, but it varies by country). Some individuals are at increased risk for colorectal cancer. For example, those with a history of inflammatory bowel disease, other rare inherited syndromes, small growths (polyps) in the colon, or a family history of colorectal cancer. 


The symptoms of colorectal cancer include: a change in bowel habits, bloody or very dark stool, abdominal pain, weight loss, and anemia.

Likely Course

The doctor will ask about family and medical history and current symptoms. They will order blood and imaging tests and make an immediate referral to a gastroenterologist for further testing. 

After initial testing, a person may have more advanced testing, like tissue sampling (biopsy). There are several different approaches to treatment for colorectal cancer, depending on many factors.

IBS symptoms are usually not something serious, although it is possible. If you have concerns about your IBS symptoms, please follow our guidance and contact your doctor or get immediate medical care.