What iscausing my tongue to be orange?

Many reasons: Orange discoloration may be related to the color of lozenges, food or medications you may be using that have orange coloring.

Build up staining: Most likely your tongue has build-up of debris on it, and that build-up is being stained by whatever foods you are eating. Carrots, orange juice, orange candy, whatever. It is unlikely that it is related to any disease. To remove thetakes time and effort. Get a tongue scraper from the drug store. At least twice a day, scrape your tongue. Gradually the build up and staining will lessen.

Orange?: The only thing that i can think of is orange dye from some food or liquid you recently had. Are you sure it's "orange"? If it persists, see your dentist who may refer you to a physician if abnormal and cause needs further evaluation.

Clean tongue: You need to use a soft toothbrush and an tongue cleaner to clean your tongue.