You may now wonder what leads to this problem. As we have already mentioned, the infection is the core problem of peritonitis. You may wonder, but even peritoneum may be the solution. However, usually, the infections are external, meaning they do not develop inside the body. A burst appendix provokes the ruptures. If it happens in the gut, the chances of facing peritonitis go higher. The potential victims may be on a kidney dialysis. It refers to filling the possibly injured zone with liquid.