The second shot of the new crown vaccine is more painful than the first shot?

Is the second shot of the new crown vaccine more painful than the first shot? On June 21st, this topic was on the Weibo hot search list.
As of 12:30 that day, the reading volume of this topic has reached 260 million, and the volume of discussion has reached 330 million
.

On the morning of the 21st, vaccine expert Tao Lina said in an interview with The Paper ( that in terms of medical principles, "the second shot hurts more than the first shot" has no scientific basis and belongs to individual differences.
The vaccination method of the personnel, the status of the vaccinated person, the different vaccine manufacturers and batches, etc.
, if there is pain, low fever, etc.
, take a good rest and treat the symptoms to relieve the symptoms.
If the situation worsens or persists, seek medical attention in time
.

Taolina said that as far as the status of the vaccinated person is concerned, if the person’s recent state is poor, such as depression, frequent staying up late, lack of sleep, etc.
, even if the pain level is the same, the vaccinated person’s pain sensitivity will be higher.
It will feel more painful
.

Vaccination with different manufacturers and different batches of vaccines will also have a slight impact on the degree of pain
.

Tao Lina introduced that the deltoid muscle on the arm is a part with fewer nerves
.

Taolina received two doses of the new crown vaccine at the end of last year and the beginning of this year.
“I expected to have a little pain, but in fact I didn’t feel any pain, nor did I feel any pain.
My family members were also vaccinated, and there was nothing.
Feel
.

"Some people develop low-grade fever and headaches after vaccination.
This is just a chronological order of vaccination, but whether there is a causal relationship is difficult to verify
.