it's an ingrown toenail
The dead nail will begin to detach (and eventually fall off) while a new toenail grows in.
Unless there has been significant damage to the nail root... yes.
Don't know of the name, but it sounds like a fungus... they do crazy things.
A dark toenail is just a dirty toenail.
The word toenail is a compound word. The words are toe and nail.
You should not put artificial nails on an exposed toe. If the nail fell off, it should be protected until the nail grows back in.
Yes, both are same which affect nail with fungus
If possible, keep it on. (I used surgical tape for several months) It'll protect the very tender nail bed while the new nail grows out. The old will eventually come off anyhow, and the later the less uncomfortable.
nail file
so they can grow new ones and so you can be healthy.
ringworm,tapeworm,toenail,nail
By definition, your toenails, as well as your hair, and as opposed to your skin - is always dead. What happens if it gets black is that you've had a bleed under the nail, in the nail bed. That kind of thing will often - but not always - disturb the growth zone of the nail somewhere behing the cuticle. When that happens, the nail will no longer be able to grow as a continuous unit. There'll be a stop in the growth, a break in the nail, and then there'll be a new nail. As the new nail grows the old will be pushed ahead and eventually fall off.