U.S. doctors online nowAsk doctors free
CA
A 24-year-old male asked:

I have a light colored brown vertical line on my index finger and middle fingernail on my left hand. i used to have a habit of biting my nail and peeling off layers from my nails, could this be a result? i hope this isn't anything too serious! thanks so m

1 doctor answer2 doctors weighed in
Dr. Ira Friedlander
Cardiac Electrophysiology 43 years experience
So do I!: So do I on my index finger! This is completely benign (not a health problem at all) and has nothing to do with your previous biting habits. Think of it like a freckle or a discolored hair. It is made the same way by the nail cells right at the quick. They put dark pigment (melanin) into their growing nail and it extends as the nail grows. Think of it as just making you more unique and special!
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Sep 12, 2018

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.