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.
Minor fingernail and toenail problems are common. At one time or another, almost everyone has caught a nail on something, causing it to rip, or has smashed a finger in a door, leaving blood under the nail. These kinds of injuries can be quite painful but are usually not serious. It is common for a nail to turn black after an injury. 2  The black or purple-black color is caused by blood under the nail and will go away as the injury heals. 3  Black, brown, or purple discoloration under a nail that has not been injured may be caused by melanoma.