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Some studies have shown, however, that people without an appendix may have slightly higher rates of infection than those with a functioning organ. “It may also take them slightly longer to recover from illness, especially those in which the beneficial gut bacteria has been flushed out of the body,” Smith added.

Why do we have an appendix? The entire digestive tract helps with our immune system, but some scientists and doctors think the appendix may be a place for our body to store certain healthy types of gut bacteria that otherwise could be altered or changed during an intestinal illness or with overuse of antibiotics.

Appendicitis may be caused by various infections such as virus, bacteria, or parasites, in your digestive tract. Or it may happen when the tube that joins your large intestine and appendix is blocked or trapped by stool. Sometimes tumors can cause appendicitis. The appendix then becomes sore and swollen.

Your appendix is a small, tube-shaped organ attached to your large intestine. Nobody knows what its purpose is — but we do know that appendicitis is serious. The standard treatment is surgery to remove your appendix.

Why do we have an appendix? The entire digestive tract helps with our immune system, but some scientists and doctors think the appendix may be a place for our body to store certain healthy types of gut bacteria that otherwise could be altered or changed during an intestinal illness or with overuse of antibiotics.

Symptoms Sudden pain that begins on the right side of the lower abdomen. Sudden pain that begins around the navel and often shifts to the lower right abdomen. Pain that worsens with coughing, walking or making other jarring movements. Nausea and vomiting. Loss of appetite.

The appendix is a thin tube that is joined to the large intestine. It sits in the lower right part of your belly (abdomen). When you are a young child, your appendix is a working part of your immune system, which helps your body to fight disease.

It is an organ that is credited with very little significance and often removed indiscriminately to avoid complications due to infection. However, modern researchers believe that the appendix has many key functions in the human body and it protects the body's internal environment from infection.