You can smoke after taking the nine-valent, but it is not recommended. Nine-valent refers to the nine-valent HPV vaccine, which is mainly used to prevent cervical cancer caused by HPV infection, and can prevent a total of nine types of HPV viruses of types 6, 11, 16, 18, 31, 33, 45, 52 and 58, and is suitable for women between the ages of 16 and 26 years old to be vaccinated. The vaccination is given by 3 doses of intramuscular injection according to the 0, 2, 6 months immunization program. There are mainly adverse reactions such as pain, redness, swelling at the site of vaccination, and dizziness, headache, nausea, muscle and joint pains. It is important to stay at the site for about 30 minutes after inoculation, and promptly report any serious discomfort to the health care provider. Post-vaccination contraindications are mainly to avoid getting water on the vaccination site, and to avoid pregnancy within six months. Smoking is not an absolute contraindication after the nine-valent HPV vaccination, so you can smoke after vaccination. However, cigarettes contain nicotine, tar and other harmful substances, which may aggravate the discomfort after vaccination. And smoking is a bad habit, not conducive to good health, so not only is it not recommended to smoke after vaccination with HPV vaccine, but also not recommended to smoke in normal times.