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.
Green stool can be a trivial problem or it can be an indication of an underlying health condition. The color of human poop is an answer to the condition and functioning of the digestive system and other parts related to it i.e. liver, intestine and gall bladder.imilarly, green stools could be the result of any such condition. Generally, it is nothing to worry about passing green stools, as this could be because of excess intake of green leafy vegetables or food containing excess amount of artificial color.