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When it comes to bowel movements, it can go a long way into telling a doctor about the current status of a patient. There are a number of different diseases that can present with some change of fecal pattern so if you notice anything out of the ordinary, make sure you bring that up to your family doctor the next time you see him to get to the bottom of what could be causing these sensations. 

A frequent complaint that can be heard in the hospital wards is about fatigue after having a bowel movement. The first reason that this could happen could stem from a poor diet. If you are not eating enough fiber in the forms of grains and vegetables, there can be an excessive amount of stress on your intestines to help food be digested and excreted from the body. This may lead you to engage your muscles more frequently to help force the remaining stools easily through your body. Make sure your diet is balanced to avoid this type of problem. 

Another potential cause that could be causing fatigue after a bowel movement could be something much more sinister. There are many conditions like Crohn's disease, Ulcerative Colitis, or even colon cancer that can present with blood loss during your fecal movements. What is more, you may not even have an apparent red color in the toilet bowl after your bowel movement, so it may be even harder for you to notice this type of symptom. Look for dark-colored stools and make sure you report any signs of fatigue to your doctor in order check for possible causes of anemia. A family history of these diseases or a diet high in red meat are both potential reasons to have this condition. 

Another potential cause of fatigue during a bowel movement would be from prolonged sitting on the toilet during a bowel movement. Most toilet seats are very hard and having a long period of time on the bowl can lead to pinched nerves and blood not flowing as effectively through the body. Again, a proper diet and exercise can lead to more frequent bowel movements and less of a chance to have this prolonged effect. 

Another condition to consider that could lead to fatigue after a bowel movement would be not from your intestines at all. Doctors need to be a bit smarter to remember that cardiac problems can also lead to fatigue during a bowel movement. When you strain to move stool out of your anus, you are doing what is called a Valsalva maneuver, which not only helps you push out the remaining material from your colon but also increases the amount of work that your heart must do to pump blood. Doctors need to be able to check how effective your heart is working by doing an echocardiogram to see if you suffer from heart failure. [1]

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