The top of the toe cap is black from playing soccer, considering that it is caused by subnail bruising. If the bruise blood is less, through the cold compress, hot compress, can promote the absorption of bruise blood. If there is more bruising under the nail, it is necessary to go to the hospital for treatment. 1. less bruising: playing ball caused by subnail bruising, if the bruising is less can be treated on their own. Within 24 hours after the injury, the use of a towel wrapped in ice, the local cold compress can reduce bleeding, pain. 24 hours after the local hot compress, conducive to the absorption of bruises. 2. more bruises: more bruises under the nail, accompanied by obvious throbbing pain, it is recommended to go to the hospital outpatient clinic, surgery, relevant examinations, if necessary, through the surgical way to drain out the bruises, combined with the doctor’s advice regular medication, can promote recovery. Bruising under the nail caused by playing ball games, it is recommended to stop playing sports to avoid further increase in bleeding. Pay attention to the local care, if necessary, go to the hospital for treatment, is conducive to recovery.