Gallbladder polyps are classified as cholesterol polyps, inflammatory polyps, adenomatous polyps, and adenocarcinoma polyps, and the causes of these polyps are different. Cholesterol polyps are caused by lipid aggregation; inflammatory polyps are caused by chronic inflammation; adenomatous and adenocarcinoma polyps are unexplained tumor-like polyps in the gallbladder. Cholesterol polyps are mainly due to the incessant accumulation of cholesterol in the gallbladder on the surface of the gallbladder mucosa, and the deposits produce single or multiple cholesterol polyps with the surface covering the gallbladder mucosa and a thin tip at its root connected to the normal mucosa, forming cholesterol polyps that protrude into the gallbladder lumen. Inflammatory polyps are mainly due to the presence of foreign bodies such as stones in the gallbladder, which irritate the mucosa of gallbladder for a long time and cause chronic inflammation, resulting in the surface of the gallbladder mucosa being stimulated by inflammation and spontaneous anti-inflammatory reaction resulting in incessant proliferation of mucosal tissue, and these proliferating protrusions are inflammatory polyps. The exact cause of adenomatous or adenocarcinoma polyps of the gallbladder is unknown. They appear as nascent protrusions on the mucosal surface of the gallbladder, unlike cholesterol polyps that have tiny tips, but rather irregular thickening of the mucosal surface at the site of the lesion, with a wide, irregularly shaped base of the polyp, and a more pronounced blood supply visible on ultrasound or CT or MRI enhancement. Gallbladder polyps is a generic name that occurs for different reasons depending on the etiology.