Hi.. I believe, it is leukoplakia which you are talking of... Leukoplakia is a precancerous lesions meaning has a potential of turing to a cancer if left alone.. It can occur due to presence of risk factors and rarely due to genetic factors alone.. If a risk factors such as infection, tobacco in any form, alcohol rarely vitamin and folic acid deficiency are associated then it is high time that she consider quiting these or treating these.. Discuss with your doctor on these...