There are rice-like pimples on the vulva, which may be sebaceous ectasia, folliculitis, eczema, sebaceous gland hyperplasia and so on. 1. Sebaceous ectasia: the etiology is unknown, and genetic factors, endocrine factors, local stimuli, can be manifested as the appearance of needle-sized flat papules on the skin and mucous membranes, usually no pain or itching sensation. It is possible to cause the vulva to have a rice grain like acne. 2. Folliculitis: secondary infection of vulvar hair follicles may cause swelling and protrusion of hair follicles, which may lead to rice-like pimples on the vulva, and may be accompanied by redness, swelling, pain and itching of the skin. 3. Eczema: Inflammatory skin reactions caused by internal and external factors may result in redness, pimples, itching and other symptoms, which may also lead to rice-like pimples on the vulva. 4. Sebaceous gland hyperplasia: one or more flat pimples appearing on the vulva in a yellowish or cream color, which generally do not need treatment. There may be other reasons for having rice-like pimples on the vulva, so you should go to the hospital in time and follow the doctor’s instructions for treatment.