1 doctor weighed in:

What can cause a yellow tongue?

1 doctor weighed in
Dr. Charles Cattano
Internal Medicine - Gastroenterology

In brief: Maybe thrush(fungus)

The tongue is known to have many variations with pigmenting, size, appearance, & not always due to disease.
Causes of tongue that looks patchy include: lichen planus (responds to steroids), white sponge nevus (familial, benign, permanent), smoker's leukoplakia (2% risk of cancer, needs biopsy), hairy leukoplakia (due to epsteinbarr virus), warts (due to papillomavirus), "thrush" (rx antifungals).

In brief: Maybe thrush(fungus)

The tongue is known to have many variations with pigmenting, size, appearance, & not always due to disease.
Causes of tongue that looks patchy include: lichen planus (responds to steroids), white sponge nevus (familial, benign, permanent), smoker's leukoplakia (2% risk of cancer, needs biopsy), hairy leukoplakia (due to epsteinbarr virus), warts (due to papillomavirus), "thrush" (rx antifungals).
Dr. Charles Cattano
Dr. Charles Cattano
Thank
Read more answers from doctors