A few months ago I had pitting of my thumb nail. I'm not sure what caused this but it seemed to happen rather quickly. I went to a dermatologist and told her what happened... she thought it was rather odd as she said pitting should occur slowly. As the nail grows in. While mine seemed to happen pretty acutely. She recommended letting the nail grow out and was confident that it would be fine... pointing out that the nail by my nail bed looked normal.
Three months later things really took a turn for the worse. My thumb nail began to separate, and it began to turn green from bacteria.
I made a return trip to the doctor. She cut my nail all the way back (as the nail wasn't attached at all by that point) and did a scrape of the skin. She cultured it for fungus which game back negative.
She gave me an anti-fungal creme to rub on it daily. It started to grow in and I had some hope. But the green returned. What was interesting as it came in from the side inward. The green is darkest at the edges (which I believe signifies the deepest nail penetration..?) with the right edge being the darkest of the two. Eventually it swirled in and I'm back to where i started from
I put a band-aid over it when leaving the house because it has grown unsightly. It is important to note that all of my fingernails are fine and healthy. I have no rashes or any other skin conditions going on. Just the nail.
Thanks for reading all this. I'm going to make another appointment with the doctor, but I wanted to hear some other ideas before the visit