Unconscious spitting at night may be caused by sleeping posture factors, may also be due to abnormal secretion of salivary glands, while not excluding the possibility of neural regulation dysfunction, need to be specifically analyzed and targeted treatment. 1, sleeping posture factors: If you sleep in a lateral position during the night, squeeze the face to appear open mouth phenomenon, after the increase in saliva secretion in the mouth, easy to appear saliva out of their own, which leads to night Sleep unconscious spitting saliva, usually without special treatment; 2, abnormal salivary gland secretion: gastritis, gastric ulcer and other diseases lead to abnormal salivary gland secretion, will cause increased saliva secretion, increased saliva in the mouth easily cause saliva outflow, may be manifested as night sleep unconscious spitting saliva, need to follow medical advice to treat the primary disease. If it is caused by gastritis, it can be treated with clarithromycin extended-release tablets, domperidone tablets, thioglycollate aluminum suspension gel and other drugs. If it is caused by gastric ulcer, can use bismuth citrate potassium tablets, omeprazole enteric capsules and other drugs; 3, neuromodulation dysfunction: may be caused by excessive pressure, will lead to abnormal neuromodulation function, such as the control of saliva secretion nerve dysfunction, resulting in a large amount of saliva secretion, so that the phenomenon of unconscious spitting at night, need to be treated by nutritional neurological drugs, can take oral methylcobalamin tablets or Glutathione tablets to regulate. In addition, if you sleep unconsciously spitting at night, you need to do a good job of oral hygiene care in daily life, to develop a good habit of brushing your teeth in the morning and evening, to avoid secreting a lot of saliva, otherwise a lot of saliva secretion will stimulate the oral mucosa and around the oral mucosa, resulting in the probability of local infection inflammation in the mouth.