The appearance of acne on the right side of the face may be related to a variety of factors, acne is also clinically known as acne, the common causes are as follows: a. Bacterial infection, common such as Propionibacterium acnes, Staphylococcus albicans and Malassezia, of which Propionibacterium acnes is the most important. Elevated androgen levels can promote the development of sebaceous glands and produce large amounts of sebum, and the presence of sebum around the sebaceous glands of hair follicles can lead to epithelial keratinization of hair follicles to form acne. The follicular sebaceous gland ducts are abnormally keratinized and the keratinocytes in the lower part of the follicular funnel are not easily shed, resulting in the thickening of the keratin layer and the accumulation of keratinous material, which leads to the blockage of the follicular sebaceous gland ducts and the formation of acne, which is the basis for the formation of acne. Fourth, the occurrence of acne in some patients is also related to the immune function of the body.