There are individual differences in whether or not it is painful to take the New Crown vaccine, usually similar to the feeling of getting an injection and infusion when you are sick every day, and due to the different degrees of nerve sensitivity of each person, as well as the different technicians who administer the New Crown vaccine and the ingredients of the vaccine, all of them can affect the pain feeling of the vaccinated person, but usually it does not cause severe pain, and it is recommended to actively vaccinate the New Crown vaccine.1. Pain sensitivity of the vaccinated person: When the vaccination needle enters the When the vaccine needle enters the body, it will stimulate the nociceptive nerve endings, which will be transmitted to the thalamus through the nociceptive nerve to feel pain. At the same time, each person’s skin sensitivity is different, so the specific feeling is also different. People with sensitive skin and fear of needles feel pain significantly, while the opposite is true for mild pain; 2. Technical operation: The feeling of vaccination is different because the technicians who administer the vaccine are different. If the technicians operate skillfully and gently, and the vaccinators relax their muscles, they will feel less pain, and vice versa, they will feel more pain. Therefore, it is recommended that vaccinators go to regular hospitals to receive the new crown vaccine to avoid unnecessary trouble and pain; 3. Vaccine composition: The existing new crown vaccine can be divided into inactivated vaccine, adenovirus vector vaccine and recombinant subunit vaccine according to its composition, and there may be some differences in the body’s absorption of different vaccine components, which may affect the perceived pain. In addition, it is recommended that vaccinators eat and drink little before vaccination and wear loose clothing for vaccination, which will facilitate vaccination as the vaccination site is the upper arm muscle. You can also relax by listening to music appropriately without being overly nervous.