pulmonary tb in the lungs is contagious it spreads when a person who has active tb breathes out air that has the tb bacteria in it and then another person breathes in the bacteria from the air an infected person releases even more bacteria when he or she does things like cough or laugh
An ideal bowel movement is medium brown, the color of plain cardboard. Stool that is pale or grey may be caused by insufficient bile output due to conditions such as gallstones, hepatitis, chronic pancreatitis, or cirrhosis. Bile salts from the liver give stool its brownish color.
ABCs of Poop continued... Stool that is light in color -- like grey clay -- can also mean trouble if itâs a change from what you normally see. Although it doesnât happen often, very light-colored stool can indicate a block in the flow of bile or liver disease.