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.
Color changes. Little white marks (leukonychia) often appear after minor injuries. They may last for weeks or months and usually go away on their own. It is common for a nail to turn black after an injury. The black or purple-black color is caused by blood under the nail and will go away as the injury heals.