This is a buildup of mucus and particles that can occur over time in your gallbladder. Your gallbladder is a small organ that is pear-shaped and is located on the right side of your abdomen below the liver. The primary function of your gallbladder is to be a reservoir for bile, concentrated it, and empty it into your common bile duct. This common bile duct enters your small intestine and helps with digestion. When a person has gallbladder sludge many consider it a microscopic form of gallstones.
