The reasons for salty and smelly saliva may include the following:
1. Poor oral hygiene: Inadequate oral hygiene can lead to food residue and fermentation in the gaps between teeth, resulting in unpleasant odors. Long term smoking can also lead to drooling. The growth of bacteria in the oral cavity can also cause changes in the taste of saliva, which may manifest as salty or foul odor.
2. Gastrointestinal diseases: Gastrointestinal disorders are one of the common causes of bad breath and drooling. For example, gastrointestinal diseases such as Helicobacter pylori infection, chronic gastritis, and pyloric obstruction may lead to indigestion, and food residues in the intestines cannot be smoothly excreted. After fermentation, they will produce odorous gases, which may cause salty and smelly saliva when entering the mouth.
3. Other illnesses: Some other illnesses may also cause salty and smelly saliva. For example, renal dysfunction may lead to abnormal salt excretion in the body, causing a salty taste in saliva; Endocrine system diseases such as diabetes may lead to imbalance of oral flora environment and cause halitosis. Oral diseases such as gingivitis and periodontitis may also cause bacteria to rapidly multiply in the mouth and release unpleasant odors.
The above are only possible reasons and not absolute. If there is a salty and smelly saliva, it is recommended to seek medical attention in a timely manner, determine the specific cause through professional examination, and receive targeted treatment under the guidance of a doctor. Meanwhile, maintaining good oral hygiene and dietary habits is also an important measure to prevent salty and smelly saliva.