What are the causes of diaharea after gallbladder removal?

Bile salts: After gb removal, bile is still produced by the liver and still flows into the intestine but instead of having a gallbladder full of bile empty every time you eat there is instead a constant trickle of bile into the intestines which can play havoc on your digestion. Still, every person is different. See this excellent article: http://www.Mayoclinic.Com/health/gallbladder-removal-diet/my01815.