IBS vs CD | Similar Symptoms | Different Causes, Triggers & Treatment

IBS vs CDIBS and celiac disease both affect the digestive tract but they are two completely different conditions with different causes, triggers, and treatments. However, given that both conditions primarily affect the intestines, they can have similar symptoms.

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Is it IBS or celiac disease?

Irritable bowel syndrome (IBS) is a digestive condition that affects the lower portion of the gastrointestinal tract, which includes the small and large intestines.

Celiac disease is another digestive condition that affects only one portion of the gastrointestinal tract: the small intestine.

Although IBS and celiac disease both affect the digestive tract, they’re two completely different conditions with different causes, triggers, and treatments. However, given that both conditions primarily affect the intestines, they can have similar symptoms.

Here’s how the most common symptoms of IBS and celiac disease compare:

Symptoms IBS Celiac disease
abdominal pain x x
bloating x x
constipation x x
damage to digestive tract x
diarrhea x x
feeling of incomplete evacuation x
gas x x
lactose intolerance x x
loose, greasy, or foul-smelling stool x
mucus in stool x
nausea x x
vomiting x

So, how can you distinguish between IBS and celiac disease when the symptoms are so similar?

One of the biggest differences between the two conditions is how they affect the body. These effects can lead to a difference in the severity of symptoms.

IBS is a condition that is limited primarily to the lower digestive tract, meaning that it’s unlikely to cause additional symptoms elsewhere in the body. In addition, IBS isn’t known to cause long-term damage to the digestive tract, so it rarely causes nutrient deficiencies.

Celiac disease is an autoimmune condition that, depending on the severity, can cause symptoms that extend beyond the digestive tract. Unlike IBS, the damage that celiac disease causes can prevent the body from absorbing important nutrients, which can cause more severe symptoms.

Since celiac disease can damage the digestive tract, people with this condition may also experience the following symptoms as a result of nutrient deficiencies:

  • fatigue
  • joint or bone pain
  • canker sores
  • red tongue
  • headaches
  • vertigo
  • peripheral neuropathy
  • seizures
  • infertility
  • delayed menstruation
  • missed menstrual periods
  • miscarriage
  • anemia
  • arthritis
  • depression
  • anxiety
  • dermatitis herpetiformis

In addition, children with celiac disease who have nutrient deficiencies may experience symptoms of delayed growth, such as:

  • failure to thrive
  • weight loss
  • short height
  • tooth damage
  • delayed puberty
  • mood changes

What causes or triggers symptoms of IBS or celiac disease?

IBS and celiac disease also share a handful of similar causes, although there are some definite differences between the underlying causes of these two conditions. Common causes for IBS and celiac disease include:

  • digestive tract infections
  • food intolerances
  • genetics
  • gut bacteria overgrowth
  • emotional stress

Just like there are differences between the symptoms of IBS and celiac disease, there are some notable differences in what can trigger each of these conditions, as well.

Celiac disease is solely triggered by an immune reactionTrusted Source to gluten. Gluten is a protein that is naturally found in wheat, barley, and rye. When someone with celiac disease eats gluten or encounters products that contain gluten, it causes an immediate immune system reaction (or “flare-up”).

IBS can be triggered by a wide variety of foods, not just gluten. Some research has suggested that specific carbohydrates called FODMAPs (fermentable oligo-, di-, mono-saccharides and polyols) contribute to IBS flare-ups, but there are other known triggers, such as psychological stress.

If you have IBS or celiac disease, it’s good to know what triggers a flare-up so that you can avoid chronic or debilitating symptoms.

When to seek medical help

We’ve all experienced the occasional upset stomach or episode of constipation or diarrhea. However, if you experience abdominal pain, constipation, diarrhea, or other digestive symptoms that don’t go away or become worse over time, you should visit a doctor.

Symptoms that require medical attention

The following symptoms could indicate a more serious underlying condition:

  • difficulty or pain when swallowing
  • severe abdominal pain
  • diarrhea or vomiting that doesn’t stop
  • blood in the stool or vomit

Ultimately, while some of the symptoms of IBS and celiac disease may seem minor, any new or worsening symptoms that don’t get better with over-the-counter medications should be checked out by your doctor.


Despite being two entirely separate conditions, IBS and celiac disease share a number of symptoms, causes, and even triggers.

However, while IBS symptoms are typically limited to the digestive tract, the symptoms of celiac disease can affect the entire body. In addition, while an IBS flare-up can be caused by a wide variety of triggers, celiac disease has a more defined trigger.

Without a proper diagnosis from a doctor or gastroenterologist, it can be difficult to determine exactly what’s causing new or developing gastrointestinal symptoms.

If you or a loved one are experiencing any of the symptoms mentioned above, schedule a visit with a doctor for further testing and diagnosis.

1 https://www.healthline.com/health/ibs/ibs-vs-celiac