It is possible to get the nine-valent for mouth ulcers. Nine-valent vaccine is a type of cervical cancer vaccine, can prevent the occurrence of cervical cancer to a certain extent, applicable to women aged 16 to 26 years old, for people with mouth ulcers, generally does not affect their normal vaccination. When vaccinated with the nine-valent, it should also be noted that if there is a combination of obvious fever, cough and other inflammatory reactions, the vaccination should be postponed, and if the patient has recently taken anti-inflammatory drugs or non-steroidal anti-inflammatory drugs, it is also necessary to stop the drugs for 1 week before the vaccination, so as not to affect the effect of the vaccine. Pregnancy is not allowed within half a year after vaccination, and if pregnancy is found after vaccination, the vaccination should be continued after delivery. If a woman has had a history of sexual intercourse before vaccination, she should complete the cervical cancer screening to make sure that there is no cervical lesion before vaccination. For those who want to receive the nine-valent cervical cancer vaccine, they should pay attention to the above matters, and also pay attention to the regular medical institutions for vaccination.