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What is it?


Symptoms And Complications

How to diagnose?

Treatment and Preventions


What is Diarrhea?

Diarrhea is a symptom, not a disease. It is defined as passing frequent (3 or more per day) loose or watery stools. The acute form lasts less than 14 days (usually only a few days), goes away on its own, and usually isn't serious, but it can be linked with some other problems. It affects people of all ages, and some types are infectious. The average adult may get acute diarrhea 4 times a year, and long-term effects are rare.

Chronic diarrhea lasts longer than 4 weeks. An inflammatory bowel condition such as Ulcerative Colitis or Crohn's Disease may be to blame.

Children and infants with diarrhea should be seen by a doctor.

What causes Diarrhea?

People get diarrhea when the feces move too quickly through the bowels so that the intestines don't have enough time to pull water from the waste to "firm it up."

People get diarrhea for many reasons, including:

  • bacterial and viral infections such as salmonella or rotavirus, the most common cause of acute diarrhea in children
  • certain medications, such as antibiotics, blood pressure medications, or those containing magnesium
  • certain intestinal diseases such as ulcerative colitis and Crohn's disease
  • intestinal parasites, especially when travelling
  • not digesting food completely – for example, some people can't digest lactose, the sugar found in milk, while others may not be able to digest or absorb fat or carbohydrates
  • radiation or chemotherapy
  • overactive Thyroid gland

In functional bowel disorders like irritable bowel syndrome, the muscles that normally move waste along the intestine can spasm, causing diarrhea.

If you think that a medication you're taking is causing the problem, don't stop taking it before talking to your doctor.

Diarrhea isn't always due to things that are eaten or swallowed. Emotional stress or turmoil can also bring it on.

Diarrhea Symptoms And Complications

Your stool will be loose and watery. You may suffer from abdominal cramping, nausea, or bloating. You may even have a Fever, along with chills. If you've had diarrhea for a few days, you may feel lightheaded or weak. This comes from rapidly losing the minerals, sugar, and water that your body needs. Normally, diarrhea won't cause you to lose control of your bowels – if this happens, you should consult your doctor.

You may also notice that you're urinating less. This is because your body is losing water through bowel movements instead of urine. If the diarrhea lasts longer than 72 hours or you have a fever of 38.5°C or higher, if you notice blood or pus in the stool, or if you have severe abdominal pain or vomiting that prevents fluid replacement by mouth, see a doctor immediately. Complications from dehydration due to diarrhea can develop quickly in elderly, debilitated, or very young people or anyone with severe diarrhea. Acute diarrhea accompanied by fever and stools with blood can be signs of a potentially dangerous infection or parasite.

Always consult a doctor for a child with diarrhea who hasn't urinated for 6 hours – the child could be dangerously dehydrated.

How to diagnose Diarrhea

Your doctor will first need to find out what's causing your diarrhea by asking questions about your eating habits and medication you've been taking (including non-prescription medication). Your doctor will evaluate your fluid and hydration status and examine your abdomen. Blood and stool samples may be taken to check for infection if deemed necessary. It may take several days to get the results of stool samples, but it is important for your doctor to know what is causing the diarrhea to determine the appropriate treatment.

With chronic diarrhea, a colonoscopy may need to be done to be sure it isn't due to more serious problems. This involves inserting a flexible tube with a tiny camera in the tip (an endoscope) by way of the anus to examine the inside of the colon (the last part of the intestines).

Diarrhea Treatment and Preventions

The goal of treatment is to ease the symptoms and get the bowel movements back to normal. Preventing dehydration, which can happen due to the extra loss of water during episodes of diarrhea, is also important – especially in children and seniors.

People don't always need to take medication for diarrhea. For adults, it's a good idea to just wait 48 to 72 hours if possible to see if it stops on its own. By allowing it to "run its course," your body can naturally get rid of whatever is causing the diarrhea. If the diarrhea continues, however, you should talk to your doctor.

If the suspected cause is a parasite or bacteria, your doctor may prescribe an antibiotic to get rid of it. Otherwise, a doctor or pharmacist may recommend medications such as Bismuth Subsalicylate or Loperamide* to provide relief from diarrhea. If symptoms continue more than 72 hours from onset of the diarrhea, consult a doctor. Some probiotics may be helpful to prevent or treat certain causes of diarrhea. Talk to your doctor or pharmacist to find out if a probiotic would be right for you.

Dehydration caused by losing water through frequent bowel movements can cause serious complications. In particular, it can make any medications you take go through your body much more quickly than they should, so they may not work properly. Be sure to discuss this with your doctor. Dehydration can also cause kidney damage and electrolyte imbalances.

Signs of dehydration include a Dry Mouth, increased thirst, decreased urination, decreased sweating, and feeling weak or lightheaded. Signs may also include nausea, muscle cramps, and a higher body temperature.

At the first sign of diarrhea, drink plenty of "clear" fluids, at least two cups an hour. Oral rehydration solutions designed to match the body's intestinal fluid are best, especially for children and seniors. Be sure to consult a health professional before treating children or if diarrhea is accompanied by vomiting. Once rehydration has been successful, age-appropriate foods should be re-introduced.

Standard recommendations no longer include "resting the bowel" after a diarrhea episode. Take it easy physically until the diarrhea is gone – you'll need your strength to get well faster. You may want to eat foods that are known to "bind" stool and slow movement through the large intestine, such as the so-called "BRAT diet": bananas, rice, applesauce, and toast.

Find out what caused your diarrhea – you may be able to prevent it in the future. Because infectious agents cause so many cases, take the same precautions with diarrhea as with the flu:

  • Don't touch the hands of someone with diarrhea. If you must touch them, wash your hands immediately afterwards.
  • If you have diarrhea, wash your hands before making meals and after using the washroom, and dry your hands with a disposable paper towel – not the towel everyone else uses.
  • Many of the infectious agents that cause diarrhea hide out in food. Avoid eating undercooked meat or raw seafood, and watch out for foods that are past their freshness date or have been left in the open.

Frequently asked questions

How to buy Diarrhea medications online?

You can buy your medications to treat Diarrhea online at PocketPills if you already have a valid prescription from your doctor. You can get started by uploading your prescription, ordering a refill by transferring any existing medications to our pharmacy or talking to one of our Canadian Doctors to get an online prescription. Get started now!

Can I get brand name Diarrhea medications or chose to get generics?

Absolutely. You can always communicate your preference for brand or generic medications during your online consultation. As a policy, PocketPills advocates generic medications as more affordable and more likely to be covered by your insurance plan

Can I get a prescription on PocketPills for Diarrhea?

Yes, our physicians can prescribe medications online during your consultation. Once you receive a prescription, you'll have the option to have it delivered to your door in discreet packaging and at no additional cost!. Click here to get an online prescription today!


All material © 1996-2021 MediResource Inc. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health providers with any questions you may have regarding a medical condition.

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