Small hard bumps on the skin on the side of the vagina may be related to diseases such as folliculitis, condyloma acuminatum and vestibular cysts. 1. Folliculitis: Vulvar folliculitis is mostly caused by pathogenic bacterial infections, such as Staphylococcus aureus invading the hair follicles, leading to inflammation of the hair follicles. Red papules and pustules may appear locally, which may be accompanied by different degrees of pain and itching. 2. Condyloma acuminatum: Condyloma acuminatum, also known as genital warts, is caused by human papilloma virus infection. If unclean sexual behavior for a period of time, wart-like lesions appear around the genitals or anus, with relatively large differences in size and shape. 3. Vestibular cysts: Vestibular cysts, also known as Bartholin’s cysts, are caused by pathogens that invade the glandular ducts or other factors that lead to blockage of the glandular ducts, resulting in lumps on the vulva, which can also be accompanied by swelling, pain, and a burning sensation. Small hard bumps on the skin on the side of the vagina are also known to be associated with diseases such as scleroderma and sebaceous adenitis. It is recommended to go to the dermatology department of the hospital, to clarify the cause of the disease, and then follow the doctor’s instructions to standardize the treatment.