Women will wake up in the morning with a slight bitterness in the mouth, which is a normal situation and can be eliminated by brushing and rinsing the mouth generally, such as bitterness in the mouth caused by fatigue, excessive smoking, snoring, alcoholism, etc. Generally speaking, if bitterness in the mouth in the morning exists only for a short period of time and in stages, it may require a certain amount of conditioning and recuperation to be relieved; if bitterness in the mouth persists, the original cause needs to be clarified and timely treatment is required: 1, mental factors: mostly related to emotions and mental tension, when women are in long-term anger, anxiety and insomnia, especially when they enter menopause, it will lead to endocrine disorders and the appearance of morning mouth odor, bitter mouth; 2, oral hygiene: there are food residues in the mouth in the morning, or too much calculus, periodontal disease, pulpitis leading to bacterial proliferation, resulting in the symptoms of bitter mouth; 3, damaged salivary glands: women damaged salivary gland secretion is reduced, which leads to dry oral mucosa, tongue taste impairment, often feel a bitter taste; 4, gallbladder disease: bitter mouth is a reaction to gallbladder disease, many Female gallbladder disease patients, especially elderly women, if suffering from cholecystitis, gallstones, etc., due to poor gastric power or bile reflux, will lead to symptoms of bitter mouth; 5, gastrointestinal function diseases: morning food accumulation in the gastrointestinal, gastrointestinal digestive function is not good, can not be digested in time will also appear women get up in the morning bitter mouth; 6, acute inflammation: viral, fungal infection resulting in tongue inflammation, or digestive tract inflammation The acute inflammation of liver and gallbladder diseases, in particular, can cause bitterness in women’s mouth in the morning. Women should try to eat regularly in their daily lives, eat less spicy and stimulating food, eat more fruits and vegetables, and those who have the habit of smoking and drinking need to reduce or even quit, so that they can try to avoid the occurrence of bitter mouth in the morning. Moreover, proper exercise to enhance physical fitness and promote the normal operation of digestive function is also an effective way to prevent morning bitterness.