Sjögren's syndrome: The first signs are noticeable in the eyes and mouth. In sick people, the immune system attacks the glands and mucous membranes that provide moisture and impairs their function.

Itchy, burning or red eyes and increased sensitivity to light can also occur. This can cause problems in the mouth area such as bad breath or difficulty speaking. The disease usually progresses slowly and develops over years. Anyone who suffers from the typical symptoms of Sjögen's syndrome should have the exact cause clarified by a doctor.