Question

what is the medical word for lesions that are caused from chronic irritation in the mouth?
leukoplakia
jaundice
bilirubin
melena

Explanation:

Leukoplakia is a medical term for white - colored lesions in the mouth often caused by chronic irritation. Jaundice is related to yellowing of skin due to liver problems. Bilirubin is a yellow pigment involved in jaundice. Melena refers to black, tarry stools usually due to gastrointestinal bleeding.

Answer:

A. leukoplakia