Cervical cancer vaccination contraindications and precautions

Contraindications to cervical cancer vaccination mainly include allergies to vaccine components, being pregnant or planning pregnancy, and suffering from acute and severe febrile illness. Precautions cover health status assessment before vaccination, observation for 30 minutes after vaccination, handling of possible minor adverse reactions, etc.

1. Contraindications

People who are allergic to any component of the vaccine (such as yeast, adjuvants) are prohibited from vaccination, as this may cause severe reactions such as anaphylactic shock. Pregnant women must delay vaccination. Existing studies have not confirmed the safety of the vaccine to the fetus. Vaccination of lactating women needs to be carefully evaluated. Patients with acute and severe febrile illness should postpone vaccination to avoid aggravating the original condition or interfering with the evaluation of vaccine effectiveness. People with low immune function (such as HIV-infected people and patients using immunosuppressants for a long time) may affect the protective effect of the vaccine and require individualized evaluation by a doctor.

2. Precautions before vaccination

Before vaccination, you must truthfully inform your doctor of your allergy history, pregnancy status, and recent medication use. Women can be vaccinated normally during their menstrual period, but those with severe menstrual cramps can be vaccinated electively. If you have recently received other vaccines (such as influenza vaccine), you need to wait more than 15 days to avoid immune interference. There is no need to specifically check the HPV infection status before vaccination, but those with cervical lesions still need to complete routine screening and treatment.

3. Precautions after vaccination

Patients need to be observed for 30 minutes after vaccination to monitor for acute allergic reactions. Redness, swelling and pain may occur at the injection site, which can be relieved by cold compress. A few people may experience low-grade fever and headache, which usually subside on their own within 3 days. Avoid strenuous exercise and alcohol consumption within 3 days after vaccination to reduce local irritation and discomfort. The entire course of vaccination (three shots) must be completed on time and should not exceed 12 months to ensure the immune effect.

4. Precautions for special groups of people

Vaccination for adolescents under the age of 16 requires a guardian to sign an informed consent form. It is recommended that women over 45 years old assess their HPV infection status and cervical cancer risk before vaccination. People with a history of severe adverse reactions to vaccines should avoid vaccination again. Patients with chronic diseases (such as diabetes and hypertension) need to be vaccinated after their condition has stabilized, and health monitoring should be strengthened after vaccination.

5. Coordination with other medical activities

Avoid immune function testing within 1 month after vaccination to avoid interfering with the accuracy of the results. If pregnancy occurs unexpectedly after vaccination, there is no need to terminate the pregnancy but subsequent doses need to be suspended. For those who are undergoing treatment for cervical cancer, it is recommended to evaluate the necessity of vaccination after the treatment is completed. Regular cervical cancer screening is still required after vaccination because the vaccine does not cover all high-risk HPV subtypes.

After receiving the cervical cancer vaccine, you should keep the injection site clean and dry and avoid scratching or applying heat. Eat a light diet, drink plenty of water to promote metabolism, and temporarily avoid spicy and irritating foods. If you experience persistent high fever or severe allergic reactions, you need to seek medical attention promptly. After completing the vaccination, you still need to adhere to comprehensive preventive measures such as safe sex and regular gynecological examinations. It is recommended to record the vaccination time and batch to facilitate subsequent dose arrangements or adverse reaction tracing.