Double pylorus in an elderly female patient: a case report.

Double pylorus is a rare but clinically relevant condition that may first be detected when complications such as gastrointestinal bleeding occur. Reported associations with H. pylori infection and nonsteroidal anti-inflammatory drug exposure represent observational trends rather than established causal relationships, as the evidence remains heterogeneous and limited. The condition likely develops in the setting of multifactorial impairment of gastroduodenal mucosal integrity, particularly in older or medically vulnerable individuals.