Is blood drawing good for the body?

Drawing blood is usually good for the body and can help regenerate the blood.

Clinically, it usually refers to the collection of venous blood. Before the operation, the gastrointestinal tract needs to keep an empty stomach and avoid taking in a lot of food to avoid affecting the test results. Blood tests are done to check whether the body has anemia or an abnormal increase in white blood cells. It is also one of the important examination methods for aplastic anemia. Women are affected by the hormone levels in the body for a long time, which may cause endocrine disorders and menstrual disorders. Choose to do a blood test for 6 sex hormones to find out the specific causes of the symptoms. You can also check whether you have hepatitis and understand liver function, such as hepatitis B or hepatitis C.

If your menstruation is normal and you do not take any contraceptive measures during sexual intercourse, the chance of pregnancy is relatively high. You can do a blood test to check the HCG level and whether there is a virus or infection. Pinholes will be left on the skin right after the blood is drawn, and there may also be a purple color. You can take physical methods to improve it. Cold compresses for a short period of time can accelerate local blood vessel contraction. You can also use magnesium sulfate to reduce swelling. It usually needs to be heated to about 40 degrees, then soaked in gauze. Choose clean gauze, which has a good effect on local symptoms. You cannot take a bath within 24 hours.