5. Changes in Salivation
The production of saliva within the body has a practical point: One of the first reasons why it happens is because of the fact that it allows the body to digest food while it’s still on the way down – and at the same time, saliva also acts as a lubricant. Without it, most people wouldn’t be able to swallow and end up choking.
Mouth and tongue cancer can affect the salivary glands first. When it does, symptoms such as changes in the salivation frequency are common: Some people over salivate where they were never known to do so before, whereas sometimes others might experience a reduction in the amount of saliva their body produces – leading to a constant dry mouth and thirst.
Temporary changes in salivation can also be because of other temporary and less serious factors like dehydration, but if it happens for longer than the period of dehydration would last (and even after you have increased your fluid intake), it can be something else entirely and you should see your doctor.