Dry mouth without saliva at night may be caused by diet and sleep habits, medication factors, dry syndrome, diabetes and so on.
1. Diet and sleep habits: eating spicy and stimulating before going to bed, too much food, drinking less water, sleeping with the mouth open to breathe or sleeping in a dry environment, there may be dry mouth, no saliva and other phenomena.
2. Drug factors: If you take certain drugs before going to bed, you will also experience dry mouth and less saliva, such as haloperidol melittin tablets, nifedipine extended-release tablets and so on.
3. Dry syndrome: when suffering from dry syndrome, a series of symptoms such as dry mouth, dry eyes, dry tongue, reduced salivary secretion and dry skin will occur.
4. Diabetes mellitus: Diabetic patients may also experience dry mouth and lack of saliva, accompanied by symptoms such as excessive drinking, excessive eating, excessive urination and weight loss.
There may also be other causes, it is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease after treatment.