8 Possible Reasons Your Gums Are Bleeding

Marisa Taylor Karas is a freelance journalist based in Brooklyn who has covered health, gender, and technology for 15 years. She previously worked at The Wall Street Journal, The Guardian, and Al Jazeera America, among other publications, and also served as managing editor of the Mellon Foundation in New York City.

Dr. Clista is a board-certified pediatrician who works in private practice in Pittsburgh, Pennsylvania. He previously served as a National Health Service Corporation Scholar in the inner city of Pittsburgh for 11 years.