The appendix is a small tubular structure up to 10 cm long. Its position can vary among individuals. In most cases, it is located in the lower right quadrant of the abdomen, but deviations from this norm are possible. Such variations make diagnosing appendicitis more challenging, as its symptoms can resemble gynecological or urological conditions.
For a long time, the appendix was considered a vestigial organ with no biological function. However, recent studies suggest that the appendix plays a role in maintaining gut microbiota. It may serve as a reservoir for beneficial bacteria involved in digestion. Moreover, the appendix is linked to the immune system, as it contains lymphoid tissue that contributes to antibody production and other immune responses.