Safe Period: Contraceptive experts teach you how to use the safe period!

Common side effects such as pain, redness, swelling, and fever at the injection site may occur after vaccination with the nine-valent cervical cancer vaccine, which is generally a normal immune response.

The nine-valent cervical cancer vaccine is mainly used to prevent HPV types 16, 18, 31, 33, 45, 52, and 58 infections and related lesions. Common side effects after vaccination include local reactions at the injection site and systemic reactions. Local reactions mainly manifest as pain, redness, swelling, and induration at the vaccination site, which usually resolve spontaneously within 2-3 days. Systemic reactions may include cold-like symptoms such as low fever, headache, fatigue, muscle aches, etc. Most of them subside within 48 hours. A small number of people may experience gastrointestinal discomfort such as nausea, vomiting, or diarrhea. In rare cases, allergic reactions may occur, manifesting as rash, itching, difficulty breathing, etc., and immediate medical treatment is required. Most of these side effects are mild to moderate, short-lasting, and do not affect daily life.

After vaccination, you should pay attention to rest and avoid strenuous exercise. Keep the injection site clean and dry, and do not scratch or apply heat. When fever occurs, add water appropriately and use antipyretic drugs if necessary. If symptoms continue to worsen or severe allergic reactions occur, seek medical attention promptly. Regular cervical cancer screening is still required after vaccination because the vaccine cannot prevent all high-risk HPV infections. It is recommended that you inform your doctor of your allergy history and health status before vaccination, and stay for 30 minutes after vaccination to monitor possible allergic reactions.