Have you guessed what it is? The answer is, “But you don’t look sick!”

That’s the thing about Sjögren’s syndrome. Sufferers look healthy on the outside, while the disease attacks their internal organs. The symptoms are related to extensive dryness, affecting internal organs and—perhaps most noticeably to the sufferer—leading to chronic dry mouth. This leads to mouth sores, dental decay, difficulty with chewing, speech, taste and dentures.

April is Sjogren’s Syndrome awareness, and this infographic from the Sjögren’s Syndrome Foundation drives home the severity of symptoms. Learn more about the event by clicking here.