What happens in the body when you have diarrhea? Why can you walk a thousand miles if you hold your urine, but you can't walk an inch if you have diarrhea?

There are always moments in life when you need to find a bathroom quickly or you'll have to face the consequences. But why is it relatively easy to hold your urine, but it's so difficult to move when you have diarrhea?

Why does it seem so much easier to hold your pee than your poop?

First, let's look at the process of holding urine. The bladder is a magical organ that can hold 800 to 1000 ml of urine and has good expandability . This means that when you feel the urge to urinate, the bladder can temporarily store more urine through its own elasticity.

However, holding urine for too long is not without risks. Excessive holding of urine may lead to problems such as bladder bleeding, so it is still necessary to release urine in a timely manner!

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Compared to the bladder, the rectum has a smaller capacity of about 300 ml and a poorer expansion potential . Once there is more stool, it sends a signal to the brain asking for "release".

But often, we cannot find a suitable place immediately. At this time, the brain will issue a command to let the rectum " hold on for a while " and close the external anal sphincter to prevent accidental leakage of feces.

If too much stool accumulates, the rectum will initiate reverse peristalsis and send the stool back to the sigmoid colon so that it can continue to be held back.

However, all of this seems powerless when faced with diarrhea that is accompanied by soup and water.

The three major difficulties of diarrhea

1. Unreliable rectum: The capacity of the rectum is limited, and it is difficult to store a large amount of feces for a long time. In addition, the defense of the external anal sphincter is weak, so it is easy to "not be able to hold it".

2. Challenges of liquid stool: When you have diarrhea, the stool becomes thinner and easier to pass through the intestines, so the rectum has no time to react and it is already facing the situation of "gushing out". In addition, the control of the external anal sphincter will be greatly weakened when facing liquid stool.

3. The body’s instinctive reaction: When you eat unclean food, your body will instinctively want to excrete these “poisons” as quickly as possible, thereby accelerating intestinal peristalsis and leading to an irresistible urge to defecate.

If you often have diarrhea and it's hard to control, you might want to try the anal lifting exercise . This exercise mainly targets the muscles around the anus, and by simulating the actions of holding back and defecating , it can enhance your control over defecation. If you persist in doing this for a long time, it can effectively improve the problem of defecation control.

Finally, I would like to remind everyone that whether you are holding back urine or feces, you should try to avoid holding it for a long time . Maintaining healthy excretion habits is the best way. At the same time, if diarrhea occurs frequently, it is recommended to seek medical attention in time to find out the cause.