Red bumps on the hair next to the genitals can be caused by folliculitis, sexually transmitted diseases and infections. 1. Folliculitis: If you don’t pay attention to hygiene, cleaning is not in place, it is easy to lead to bacterial infection, causing folliculitis, appearing next to the genital hair in the case of red bumps, accompanied by itching, pain and other symptoms. 2. Sexually transmitted diseases: when the patient suffers from acromegaly, molluscum contagiosum and other sexually transmitted diseases, there may be red bumps in the hair next to the genitals. Warts mainly occur in the parts of the genitals of men and women that come into contact with them. In men, they are found on the foreskin, glans and other parts of the body, while in women, they are found on the vaginal opening, labia majora and minora, cervix and other parts of the body. 3. Infection: If a man suffers from penile circumcision, a woman suffers from vaginitis and other diseases, under the stimulation of inflammation, granular material and redness, swelling, pain, itching and other manifestations, resulting in red bumps on the hair next to the genitals. There may be other reasons for the red bumps at the hair next to the genitals, so it is recommended to actively seek medical advice and treatment under the guidance of a professional physician.