Black Longitudinal Line on Fingernail
I was trying to research about one of my fingernails on the internet that had developed this black strip along it (running longitudinally from bottom to tip), and I found another thread from this website that seemed like someone might have had this before. One thread provided a link to pictures, and my nail looks like one of the pictures. I do not know whether it is longitudinal melanonychia, but I like to pick my nails, and I know that there was this one point where I cut my nails too short and it was hurting for a bit (in which a few weeks later I noticed the black stripe around the place where I hurt myself). Is it pure coincidence? I was hoping it would disappear, but it hasn't. I have had for a couple of months now. It is only on one fingernail, and there is no pain (it is only the appearance that bothers me). Can someone please provide some guidance? I am scheduled for a biopsy in June, but the doctor said that the biopsy could make my nail grow funny and that if the cells are benign, the black stripe will not ever go away. Can someone please confirm this and explain what the doctor meant when she said that my nail might grow funny?