Medical News Today: What causes black gums?

The gums come in many natural colors, including red, pink, brown, and black. However, changes in gum color can indicate an underlying health problem. In this article, learn about what causes black gums, including smoking, gingivitis, Addison’s disease, and amalgam tattoos. We also look at treatment and prevention.

from Featured Health News from Medical News Today https://ift.tt/2EDJcHw