Bad breath, or halitosis, can be caused by various health issues. While brushing twice a day is an important step in dealing with oral odour, constant bad breath might indicate underlying health issues beyond just poor dental hygiene. Here are 5 diseases that can result in bad breath. Read further to know more. Bad breath, or halitosis, can be caused by various health issues. While brushing twice a day is an important step in dealing with oral odour, constant bad breath might indicate underlying health issues beyond just poor dental hygiene. Here are 5 diseases that can result in bad breath. Read further to know more. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle