Hepatitis B Vaccination Does Not Require Fasting

The hepatitis B vaccine is a biological product used to prevent hepatitis B. Its administration is not affected by the state of food intake, and there is no need to fast intentionally. Vaccinees only need to ensure they are in good health before vaccination. The following is an analysis of precautions before vaccination and related issues regarding vaccine efficacy.

1. Preparations Before Receiving the Hepatitis B Vaccine

Fasting is not required for hepatitis B vaccination, and it can be administered either before breakfast or after meals. However, before vaccination, it is necessary to ensure that there are no conditions such as acute infections or fever. If there is a history of allergy to vaccine components, inform the doctor in advance to avoid vaccination. On the day of vaccination, it is advisable to wear clothes that allow easy rolling up of sleeves for the doctor's operation.

2. Vaccination Process of Hepatitis B Vaccine

Hepatitis B vaccine injections are typically administered intramuscularly, with the deltoid muscle of the upper arm being the recommended site. The hepatitis B vaccination schedule mostly follows the "0-1-6" protocol, where the second dose is given one month after the first, and the third dose six months after the second, to ensure effective immunity establishment. When the scientific vaccination schedule is followed, the overall protection rate of the hepatitis B vaccine exceeds 90%.

3. Post-Vaccination Precautions

After receiving the hepatitis B vaccine, most people will not experience significant discomfort, while a few may experience mild redness or pain locally, which usually requires no special treatment. If abnormal conditions such as fever or severe allergic reactions occur after vaccination, medical attention should be sought promptly. After vaccination, avoid touching the injection site, keep it dry and clean, and refrain from vigorously rubbing or engaging in strenuous exercise within 24 hours. Receiving the hepatitis B vaccine does not require fasting, and completing the vaccination schedule promptly while in good health is essential for better prevention of hepatitis B virus infection. For those with a medical history or special physical conditions, it is recommended to follow the guidance of a professional doctor for vaccination to ensure optimal immune effectiveness in the future.