Nine-valent protection lasts for about 10 years, but there can be individual differences, and you need to be vaccinated under your doctor’s supervision. Nine-valent vaccine refers to the cervical cancer vaccine, can prevent HPV (human papillomavirus) 6, 11, 16, 18, 31, 33, 45, 52 and 58 nine types. However, the vaccination is not a lifelong immunity, the general protection period is about 10 years, so after the vaccination, you should also follow the doctor’s instructions for regular cervical cancer screening. After the nine-valent vaccination, you should pay attention to appropriate rest, avoid strenuous exercise, because the vaccine’s effect on pregnancy and lactation is not yet clear, so the preparation for pregnancy, pregnancy and lactation of women, the acute stage of the disease are contraindications. However, in case of accidental pregnancy during the vaccination period, ultrasonography is required under the guidance of the doctor, and the pregnancy can be continued when the embryo is well developed, and the maternity examination is strictly done.