有些人在打针之后,习惯用手在针眼处揉摩,以为这样会止血。其实这种做法不但不能止血,反而会加重皮下出血。当针刺破皮肤或血管时,人体有一种物质能使刺破处的血液自动凝结成血块,防止继续出血,如果不断地揉摩,血就不易凝结。另外,手上沾有眼睛看不到的各种致病细菌,用手在针眼 Some people after the injection, accustomed to hand rubbing friction in the needle eye, thinking that this will stop bleeding. In fact, this practice not only can not stop bleeding, but will increase the subcutaneous bleeding. When the needle punctures the skin or blood vessels, the human body has a substance that causes the blood in the punctured area to condense into a blood clot automatically to prevent continued bleeding. If the body rubs and rubs constantly, the blood is hard to coagulate. In addition, the hand stained with eyes can not see a variety of pathogenic bacteria, hand in the needle eye