Delaying the nine-valent vaccine usually has no effect, and a delay of 1-2 months is usually possible. However, it should be judged according to the specific situation. The nine-valent vaccine is given to women aged 16-26 years old. Under normal circumstances, the interval between the first and second shots is two months, and the interval between the second and third shots is six months. For the female population, the vaccination may be delayed for various reasons, but it is recommended to complete all medications within one year. Delayed vaccination will not have much effect, but a longer interval may result in failure of antibody production or poor efficacy. For pregnant and breastfeeding women, etc. who are not allowed to receive the nine-valent vaccine, careful counseling is required before vaccination. After vaccination, it is recommended to rest and observe the body for any adverse reactions such as allergy, fever, etc., and seek medical treatment promptly if adverse reactions occur.