Razor bumps can occur on or near the genitals after shaving. Psoriasis - Bright red, shiny patches on the penis and/or genitals. It typically is not scaly or flaking when it occurs in the genital region due to the area being well-covered, so it retains more moisture than other parts of the body.
A: The main cause of a purple tinge in fingernails is low oxygen levels in the blood. This can be caused by poor circulation, as well as habits that inhibit oxygen absorption such as smoking. A single fingernail may also become purple if it has been injured, indicating a bruise underneath the nail.
Black Toenail â Causes, Treatment, and Prevention. There are many causes of black or dark toenails, but the most common cause is trauma. When trauma occurs to a nail resulting in discoloration it is referred to as a subungual hematoma, which simply means there is a collection of blood underneath the nail. This collection not only causes the nail to become discolored, it also generates a tremendous amount of pressure, leading to intense pain.