Cats â Ailuromancy. A cat licking its face. There's rain coming soon. There will also be rain coming if you see a cat sleeping with its back to the fireplace, or if the cat is climbing the furniture. A gray cat. Good luck. Finding a cat on a boat. This is a sign of good luck.
Onychomycosis, more commonly known as toenail fungus, is a progressive disease that is often ignored due to the lack of pain or other symptoms during the initial stages. Typically it is caused by tinea species (fungus), but it can also be caused by candida species (yeast).
1. Toenail Injury. This should be the first consideration after you have a black spot on toenail. Establish what might have caused the injury. Possible causes range from stubbing a toe to dropping a heavy object on your nail. The black spot is caused by broken capillaries under the nail.