Constipation And Urinary Retention - Ask Dr. Wong

The doctor in the emergency room was correct. Severe constipation can cause urinary retention (difficulty in passing urine), with all the symptoms that you have described, as well as a few other problems that many are unaware of.

Let me begin by explaining how stool is formed in the first place. After food is swallowed and entered the stomach, digestion begins with stomach acid and many kinds of digestive enzymes secreted by our pancreas and small intestine. Nutrients from the food, including carbohydrate, proteins, fat, minerals, and all kinds of vitamins are absorbed into the body through the small intestine.

Those things that cannot be digested or absorbed, especially the bulk and fiber in fruits and vegetables, pass into the large intestine to become stool. When stool is first formed, it has a lot of water content and is very loose. As the stool passes through the the large intestine, water is gradually absorbed so that by the time it gets to the rectum (the area just above the anus), there is only a fraction of the water left.

This is how our body uses and conserves water. When we eat, there is always some water in our food. Depending on how much water and other liquids that we drink, our body has a very intelligent and efficient system to make sure there is enough water in our body to keep us healthy. If we drink lots of fluid, we produce a lot of urine which should be light in colour, and less water will be absorbed in the large intestine. If we are not drinking enough fluid for the body’s need, our kidneys will absorb as much water as possible and our urine will be concentrated. At the same time, the large intestines will try to absorb most of the water from the stool that is being formed. As a result, the stool will become more firm and solid.

It is important to remember that we need water for the body to function properly. Water evaporates from the skin in the form of sweat, and it is also lost from our lungs through every breath. There is no fixed amount of water that we need to drink every day; eight glasses of water a day is just a myth. However, if we are thirsty, we need to drink. Some people like to drink milk, but we don’t need excessive amount of milk to have a healthy body. We also don’t need to drink juice; it is regarded as empty calorie with a lot of natural sugars. Soft drinks should be used as treats only, and should not be something that we drink frequently. Water is what our body needs, nothing more, nothing less.