Red blood nevi on the skin are considered to be hemangiomas or, in some cases, larger, cherry hemangiomas, which occur on the trunk and extremities, especially on exposed areas, such as the extensor side of the forearm, and usually have no conscious symptoms. Some of them are the size of a pinpoint. In fact, treatment is not needed for these red blood nevi, as they have no impact on health. If for aesthetic reasons, you can consider using modern laser technology, such as carbon dioxide laser, to cauterize these red blood moles to play a carbonizing effect, which can generally achieve good treatment effect in 1 time, but after treatment, do not get wet for 3-5 days temporarily to avoid infection.