Can you get sick from from leukoplakia?

Depends: Leukoplakia simply means a white patch. It has to be biopsied to make a definitive diagnosis and to know what you are dealing with.

YES: Yes you can get sick, leukoplakia is already an abnormal condition, you can get cancer ( very sick ) if you don't diagnose it properly and avoid some irritants such as tobacco and alcohol. You need to see an oral surgeon and follow up very closely and try to reduce the chances of it getting malignant.

Consultation: Leukoplakia merely refers to a white patch on the mucous membranes of the oral cavity and is not a specific diagnosis. These lesions may be or may become cancerous and should be removed and biopsied. See an oral surgeon for a consultation.

No: Leukoplakia is not a disease or illness. It merely means "white lesion". There are many causes for a white spot on the gums and most are harmless. Any suspicious spot in the mouth should be looked at by your provider to determine the cause.