Is gallbladder "sand" defecated? ate pizza. now yellowish foul-smelling loose bowel. gastro once said i might have sand, not stones.

Sand Not the cause: Even if u do have sand like particles in your bile duct your symptoms are more suspicious for other problem such as lactose intolerance or fat malabsorption. Especially if there is no associated biliary colic pain. Regardless of current symptoms microlithiasis of the bile duct can progress and cause occasional problem and you should monitor your digestive symptoms.