Granuloma annulare (gran-u-LOW-muh an-u-LAR-e) is a skin condition that most commonly consists of raised, reddish or skin-colored bumps (lesions) that form ring patterns — usually on your hands and feet.
The cause of granuloma annulare is unknown. In some people, the condition might be triggered by minor skin injuries or certain types of medications. Some types of granuloma annulare occur most commonly in adults, while other varieties typically affect children.
In most cases, granuloma annulare isn't itchy or painful, so no treatment is necessary. The lesions usually disappear on their own within two years. If you are bothered by how the lesions look, your doctor can prescribe medications that will speed their disappearance.