Why do black patches appear on the tongue?
Prof B Krishna Rau
Professor and Head of Dept. of Surgery,
Sri Ramachandra Medical College, Chennai
Professor and Head of Dept. of Surgery,
Sri Ramachandra Medical College, Chennai
Q: Today for the first time I noticed some black patches on my tongue. They were never there before. They neither hurt nor feel itchy. Could you please tell me what are these patches?
A:The pigmentation could be due to:
- Vitamin B6 deficiency.
- Intestinal parasites.
- Normal Pigmentation.