Human papillomavirus, or HPV. the third dose of the HPV vaccine is not recommended to be given early. The first dose of the HPV vaccine induces the body’s immune system to recognize the virus and produce appropriate antibodies. The second dose stimulates the body’s immune system and produces a large number of antibodies. The third vaccine is a booster shot, which makes the body’s immunity stronger and produces antibodies for a long time. Therefore, a certain period of time is needed between two vaccinations. If the interval is too close, it may not be able to produce a good stimulating effect, which may affect the effectiveness of the vaccine. If the interval is too long, good immunization effect cannot be achieved either. HPV vaccine should be injected at the regular time and it is not recommended to be injected in advance. For details, it is recommended to consult a medical professional.