Long-term dry mouth is what cancer precursor

1, oral cancer

malignant tumors in the mouth, such as tongue cancer, buccal mucosa cancer, etc., may affect the function of salivary glands, leading to decreased salivary secretion, resulting in dry mouth.

2, nasopharyngeal

cancer may affect the nearby salivary glands, leading to abnormal salivary secretion, can also cause dry mouth, but also accompanied by nasal congestion, nosebleed and other symptoms.

3, kidney cancer

when kidney cancer occurs, due to malignant tumor invasion leading to renal dysfunction, may affect the water filtration of the kidney, leading to imbalance of body water balance, and then dry mouth symptoms.