<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello dr! I have a question about the color of my toungue, had a miscarriage a few years back and ever since i have noticed changes in my tongue, it gets white plaque whenever im stressed, after drinking lots of coffee with milk, alcohol and smokingsmoke maybe once every 3months. What coould be the problem, should i be worried  <response>: Hello, Welcome Thanks for consulting Chat Doctor, I have gone through your query, as you have problem of white plaque on tongue dont worry you do is firstly dont take stress so much stress causes many problems. Use tongue cleaner to clean your tongue. Do warm saline gargle two - three times a day. Use chlorhexidine mouthwash twice daily Consult dentist and go for oral examination for white patch on tongue it can be Leukoplakia or Lichen plans due to stress disorder. Hope this will help you. 