“Your appendix is a thin tube in your lower right abdomen. It sits where your small intestine meets your large intestine.

Your appendix is a 4-inch-long tube. It’s attached to the first part of your large intestine. Its exact function is unclear. Some people believe that it’s an evolutionary holdover that provides no benefits to your health.

This conventional wisdom has led to the widespread use of appendectomies to prevent and treat disease.”

Healthline