Dry mouth

Dry mouth, also called xerostomia, is a persistent feeling of insufficient saliva. It can affect speaking, chewing, swallowing and comfort, and may increase dental problems. Dehydration, mouth breathing, medicines and some health conditions can contribute. Ongoing symptoms should be assessed rather than managed only by repeatedly sipping water.

Why does saliva matter?

Saliva helps lubricate the mouth and protect teeth and oral tissues. A dry mouth may feel sticky, alter taste or make dry foods difficult to eat. Cracks, soreness or recurrent mouth infections can develop. Tell a dentist or doctor if symptoms affect eating or sleep.

Note when the problem started, whether it is worse overnight and whether you also have dry eyes or other symptoms. Bring a list of medicines and supplements. If symptoms began after a treatment change, discuss the timing without stopping the treatment yourself.

For the Australian guidance behind this explanation, see Healthdirect Australia: Dry mouth syndrome - symptoms, causes and treatment | healthdirect.

What can I do while seeking advice?

Regular small sips may improve comfort if you are not on a fluid restriction. Avoid tobacco and exposures that clearly irritate your mouth. Ask a dentist or pharmacist about suitable oral care and ways to protect your teeth. Sugary drinks used repeatedly for relief can create additional dental problems.

A clinician may examine the mouth and consider whether the cause is reduced saliva, dehydration, breathing patterns or another condition. Tests are selected according to the findings. Ask whether dental review is needed as well as medical assessment, and agree on follow-up if simple measures do not help.

When should I seek prompt care?

Difficulty swallowing, inability to maintain fluids, significant mouth pain or signs of dehydration needs prompt assessment. Severe breathing difficulty or collapse requires 000. Telehealth can begin a review of symptoms and medicines, but an oral or dental examination may be needed to identify infection, damage or another local cause.

Where to go next

Read online doctor consultations to understand the relevant service. A doctor decides whether a consultation, examination, referral or another pathway is appropriate for your situation.