Toenails suddenly black how to return a responsibility

Toe nail parts suddenly black, mostly because of external friction, extrusion, stimulation caused by the rupture of blood vessels under the nail. Blood vessels inside the deposition under the nail, deposition speed is very fast, will cause a sudden black change. In a short period of time gradually expand, 3-5 days black area will be fixed, accompanied by obvious pressure pain, severe cases can show nail damage. Do not worry too much, do not need to carry out specific treatment, just wait for healing over time. Black plaque will gradually grow to the outside of the nail, eventually completely fall off, when the black completely fall off the damaged nail will return to normal structure. Usually can choose to use hot towel hot compress, can accelerate the absorption of blood clots, thus shortening the healing time of black nail clots.