In general cases, diarrhea can last anywhere from 2 days to 2 weeks (short-termed) and is not a serious condition. But you should be watchful if it is more painful, and lasts longer than 2 weeks, in that case you should see your physician for an expert advice.

What happens in the Colon?
As a part of digestion, liquid content (amount of water) in the food is needed to be at higher level for its smoother digestion. Food first enters into stomach and travels to small intestine and then large intestine, during this journey most of the nutrients are absorbed by these parts.

At the end of digestion process, when the food reaches colon, body finishes absorbing almost all the possible nutrients. Colon absorbs the excess amount of water from the stool that is then pushed towards the rectum, and stored until it is thrown out of the body.

Symptoms of Diarrhea

• Loose/watery stools
• At times there can be abdominal pain associated with diarrhea
• Nausea
• Sometimes stool contains blood
• Fever

Causes of diarrhea
As already mentioned above, diarrhea can be normal (short-termed) to severe. General causes of diarrhea are:

• Bacterial & Viral Infection: This is considered as one of the main causes of diarrhea. Bacterial & viral infection caused via various means such as consumption of contaminated food or drinking water cause diarrhea. This is common mainly in developing countries where separation of drinking and sewage water is a big problem. Diarrhea caused by few types of bacteria can also kill the patient if no proper medication is made available. Bacteria like E-coli, Campylobacter, Salmonella, lamblia etc. and virus like Rota-virus; herpes etc. are few names in the list.
  The other reason of diarrhea is through infection, in case if the patient is suffering from other diseases, especially diseases which are related to intestinal infection. Diarrhea is experienced by patients who are suffering from serious diseases like AIDS, dysentery, Crohn’s disease, inflammatory bowel diseases such as Irritable Bowel Syndrome, cholera, bowel cancer, Ischemic bowel disease, some cases of appendicitis etc.
• Body’s negative response to some elements: If your body shows negative response to some food material, then consuming it might cause you problems like diarrhea. One of the examples is consumption of milk. It has been witnessed that digestive systems of many people cannot process and digest lactose and other elements available in milk leading to diarrhea. The best advise to those people would be to avoid consumption of any such thing.
• Laxatives & other chemicals: Laxatives like magnesium (Epsom salt), phenolphthalein, cascara etc. that are used in day to day lives and also some chemicals which are part of our food, can cause diarrhea in some people.
• Medicines: Certain type of medicines (including antibiotics and other drugs) cause diarrhea in patients. You should be very careful while using any new drug. If you witness a sudden problem with your bowel habits after you have started the medication that your physician suggested you, then you should stop taking medicines and contact your physician at the earliest.
• Excessive consumption of alcohol: Excessive alcohol consumption can also cause diarrhea in patients. Generally excessive alcohol consumption causes chronic diarrhea, in which the body’s ability to absorb ample amount of water gets affected.

Diarrhea can be classified in following two types:

• Acute Diarrhea: Type of diarrhea that lasts for less than 3-4 weeks. This type of diarrhea is generally cured with normal treatment and does not need any intensive medication.
• Chronic Diarrhea: Sometimes, diarrhea lasts really long and can extend from few months to a couple of years. This type of diarrhea is mainly caused due to some type of infection. In this type of diarrhea, the patient does not experience significant/intensive illness. Poor digestion (i.e. mal-absorption) of food, serious diseases like inflammatory bowel syndrome, irritable bowel syndrome, bowel cancer, prolonged alcohol consumption and effect of abnormalities are few other causes of chronic diarrhea.

Treatments for diarrhea
It is very important that the patient should consult a physician as soon as possible and should avoid taking any of the medicine that is not prescribed by physician. The treatment for diarrhea depends on the condition of the patient and cause of diarrhea (symptomatic treatment).

• Most common and effective treatment available for the general type of diarrhea is to provide patient with drinks containing electrolytes. This can also be considered as oral re-hydration therapy
• Patients are suggested to stay away from food and drugs that can cause increase in intensity of diarrhea. Physicians suggest following a healthy diet in portions in whole day. Milk, alcohol, certain type of antibiotics etc. substances which increases the problem should be avoided.
• The patient should religiously follow medication prescribed by physician.

Article By: Nilesh Parekh

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