A lot of red pimple grew on the body painless what reason is itch

Body long a lot of red lumps, painless, more common in two cases: one is senile hemangioma, also known as cherry-shaped small hemangioma, generally no conscious symptoms, may be related to skin aging, there are purulent granuloma, but also performance and painless, more due to trauma caused by local vascular proliferation. There are also some fungal folliculitis, such as Malassezia folliculitis, manifested in rice-sized hemispherical reddish papules, generally no conscious symptoms, in addition to the need to consider the performance of syphilis rash, clinical should be based on the characteristics of the condition and skin lesions, clear diagnosis, remove the cause, and then symptomatic treatment.