Beginning Signs of a Fungal Nail Infection. Typically it begins with a small white spots of streaks growing on the nail. In some cases, these spots can be darker or black in color. If it is dried up blood, you will feel no discomfort when applying pressure. If there is discomfort, then it is a possible sign of a nail infection.The post The Endocannabinoid System and Podiatry appeared first on Blaine Labs.