This skinny tube in our digestive system is mostly useless today and can actually endanger your life if it becomes inflamed. Scientists suspect that the appendix, which replenishes essential bacteria in our guts, was an important organ back before germ-fighting medicines helped humans overcome constant bouts of diarrhea. Scientists disagree on what the appendix actually does. Some think it’s a leftover organ from earlier humans but that it no longer serves any purpose.
Other scientists think it’s responsible for returning good bacteria to the gut after an infection. If the appendix really does serve as a source of good bacteria, then it is an important part of the human immune system. When your appendix becomes inflamed, it’s called appendicitis. It’s usually caused by a bacterial infection. The infection might start in your stomach and travel to your appendix. It might also arise from a hardened piece of feces in your intestinal tract. If you suspect you have appendicitis, make an appointment with your doctor. To diagnose your condition, they will ask you about your symptoms and conduct a physical exam. They may also order lab work and imaging tests.
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