Why do I have dry mouth when I wake up?

Many people find that their mouth is dry after waking up. This dryness may be physiological dry mouth, pathological dry mouth, or dry mouth caused by asthma. Of course, the occurrence of this symptom does not rule out the possibility that the patient has Sjögren's syndrome. Different treatment methods are needed for dry mouth caused by different situations. The following will introduce the causes of dry mouth in detail.

There are many reasons for dry mouth. Some are caused by bad diet, psychological and lifestyle habits, and some are caused by diseases. Some can be relieved in a short time, while others bother patients for a long time. To relieve the discomfort of dry mouth, people often drink water continuously. This can provide relief for those who drink too little water or lose too much water, but it is unlikely to be effective for dry mouth caused by various diseases. On the contrary, drinking too much water often increases the burden on the kidneys, which is especially inappropriate for the elderly and those with poor renal function.

1. Physiological dry mouth

Physiological dry mouth is often caused by drinking too little water, eating too salty food and a lot of dry food, after strenuous exercise and excessive sweating, and neurological disorders. Menopause, stress, anxiety and other mental factors can also cause dry mouth.

2. Pathological dry mouth

Normal elderly people may experience varying degrees of dry mouth due to atrophy of glands in the oral mucosa and reduced saliva secretion. Pathological dry mouth occurs after a cold, massive vomiting, diarrhea, and high fever. Patients with rhinitis, sinusitis, and deviated nasal septum often experience dry mouth due to poor nasal ventilation and mouth breathing, which causes evaporation of water in the oral cavity.

3. Dry mouth caused by asthma

Asthma patients have dry mouth due to excessive evaporation of water from the respiratory tract due to faster and deeper breathing. Patients with sleep apnea due to various reasons have dry mouth after getting up in the morning because of mouth breathing at night. Dry mouth caused by diabetes is the most familiar to everyone. Patients may experience dry mouth and thirst due to increased plasma osmotic pressure and polyuria caused by increased blood sugar. Some pituitary tumors can cause dry mouth.

4. Sjögren's syndrome

The most severe dry mouth occurs in people with Sjögren's syndrome. Because the immune response destroys the parotid glands, salivary glands in the mouth, tear glands and glands in the nasal mucosa, the patient will suffer from unbearable dry mouth, dry eyes and dry nose. In severe cases, turning the tongue and closing the eyes are difficult.

Very difficult