Bruising of the nail bed and plate can occur quickly, and results in a toenail that looks black, as the collected blood underneath the nail creates a dark discoloration.

It’s possible for the pooled blood under a bruised toenail to cause so much pressure that it hurts. A doctor or other provider can puncture the nail to drain fluid and relieve the pressure.

Before you know it, bruising of the nail bed and plate can then occur. This results in a toenail that looks black, due to the collected blood underneath giving it a dark hue.

The nail may also fall off before it regrows. A bruised nail may feel tender as it heals. Nail biting. Nail biting can cause pain, and it may damage tissue that helps nails to grow.

Bruises, under-the-nail bleeding, and fungal infections are the main causes for nails to crack, peel, or change color and texture. Though common, fungal infections can be hard to treat.

Laura Jennings was shocked to discover that a peculiar mark on her nail, initially believed to be a bruise found after removing nail varnish, was in fact an early warning sign of aggressive skin ...

Mum-of-one who found bruise on toenail that turned out to be rare cancer. Laura Jennings, a 40-year-old mother, was diagnosed with acral lentiginous melanoma, a rare type of skin cancer.