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The Cause of Constipation and Diarrhea

People in commercials love to talk about diarrhea and constipation, but in real life, the subjects are rarely discussed, even though they affect us all. Understanding what causes the conditions may help you avoid them.

What causes diarrhea?

Diarrhea occurs when your stools are loose, runny or completely watery. Although occasional diarrhea won't harm your health, frequent diarrhea can lead to dehydration. The condition is often caused by viruses or bacterial infections. Washing your hands frequently, particularly after touching raw foods, and cooking food completely can help reduce your chance of developing diarrhea. If you know a friend or family member is sick or has diarrhea, don't share utensils or glasses with them.

Diarrhea can also occur due to stomach irritation caused by taking antibiotics or by an intolerance to certain foods. Lactose intolerance, a condition that occurs when you have difficulty digesting sugars found in dairy products, is a common cause of diarrhea. If you've ever had to dash to the restroom after eating ice cream or pasta covered in creamy Alfredo sauce, you might have lactose intolerance.

Some health conditions can also cause diarrhea, including diabetes, celiac disease, irritable bowel syndrome, hyperthyroidism, inflammatory bowel disease, chronic pancreatitis and Addison's disease.

What causes constipation?

If you're constipated, it may be difficult or impossible to pass stools. Even if your trip to the restroom is successful, the stools you produce may be small and hard. Diet can play a part in constipation. Reducing your intake of dairy products, caffeine, alcohol and junk food can be helpful.

Resisting the urge to defecate can lead to constipation. If you're at work and decide to ignore the urge to go, you may not be able to produce any stools when you finally get home. Constipation can also occur if you change your diet or normal routine, don't exercise regularly or eat foods that aren't usually part of your diet when you're away from home.

Some health conditions can also cause constipation, including

  • Diabetes
  • Irritable bowel syndrome
  • Inflammatory bowel disease
  • Parkinson's disease
  • Multiple sclerosis
  • Pregnancy
  • Spinal cord injury
  • Hypothyroidism
  • Lupus

Occasional bouts of diarrhea and constipation are usually nothing to worry about, particularly if they accompany an illness. If you're frequently constipated or experience diarrhea often, it's a good idea to make an appointment with a gastroenterologist, a doctor who specializes in diagnosing and treating conditions and diseases of the gastrointestinal system.

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