Molluscum contagiosum is a skin infection. It is caused a virus. Most of them are less than half an inch in diameter. They have a hard white core.
Some lesions have a small dent or dimple in the center.
The lesions are the same color as normal skin, but they look waxy. They usually don't hurt or itch. The molluscum virus is very common, and almost everyone has it in his or her body. A healthy immune system will control molluscum so that if lesions appear, they do not last a long time. People with weakened immune systems can develop molluscum lesions that spread, last a long time, and are very difficult to treat.