The cause of bad breath when getting up may be related to the patient’s improper diet, or suffering from tonsil stones, chronic gastritis and other diseases. 1. Improper diet: patients get up with bad breath symptoms if the recent, can be considered because of the recent excessive consumption of garlic, chili peppers, leeks and other stimulating food and oral odor symptoms triggered. It is recommended to eat a light diet, drink plenty of water, pay attention to oral hygiene, generally through their own conditioning bad breath symptoms can disappear on their own; 2. Tonsil stones: For people who are prone to recurring pharyngeal foreign body sensation, cough, sore throat, unclear speech and other clinical symptoms, the possibility of having tonsil stones is greater. Tonsil stones are formed when more purulent secretions or food residues are deposited in the tonsil crypts, and these purulent secretions and food residues can give off a bad odor and cause bad breath; 3. Chronic gastritis: For people who are prone to recurring clinical symptoms such as loss of appetite, acidity, heartburn, stomach pain, bloating, etc., chronic gastritis is more likely to be considered. During the onset of chronic gastritis, some patients can be combined with Helicobacter pylori infection, resulting in more ammonia or hydrogen sulfide gas accumulation in the stomach triggered bad breath symptoms. In addition, bad breath symptoms may also be related to gingivitis, tooth decay and other diseases, if necessary, need to actively go to the regular hospital to confirm the diagnosis and treatment according to medical advice.