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.
But sometimes a color change can signal a minor health issue. In rare cases, it means something serious is wrong in your digestive system. If the color you see before you flush worries you, call your doctor. Poop Color 101. Poop is normally brown. The color is the result of what you eat and how much bile is in your stool.