Dry mouth at night can be caused by physiologic or pathologic factors, as follows.
1. physiological factors.
(1) Dietary factors: if you eat something salty before going to bed at night, and drink less water in order not to want to get up for nocturnal urination, it is easy to cause dry mouth at night.
(2) Environmental factors: if the patient lives in a dry environment or high temperature, it will consume the stored water in the body, leading to the phenomenon of dry mouth at night.
2. Pathological factors.
(1) Oral diseases: suffering from pharyngitis, salivary gland lesions, etc., may lead to open-mouth breathing at night while sleeping, poor breathing and other symptoms, resulting in dry mouth at night.
(2) Colds: Colds and fever are usually caused by germs invading the organism. In order to resist the invasion of germs, the organism will consume the water stored in the body, which will lead to the symptoms of dry mouth.
(3) diabetes: the patient’s body is in a high sugar state, the amount of urination will be more than healthy people, making the body’s water with the urine a lot of discharge, if the patient is not timely replenishment of water, it will lead to the symptoms of dry mouth at night.
(4) Dry syndrome: dry syndrome can damage the salivary gland function, which makes the saliva secretion decrease, resulting in dry mouth at night.
(5) Uremia: dry mouth, frequent urination, polyuria and other dry mouth conditions will occur.
Dry mouth at night may also be caused by a variety of other reasons, long time without improvement need to consult a doctor in time, under the guidance of a doctor to clarify the cause and treatment.