Modern medicine is very advanced, especially surgical treatment, in ancient times are no one dare to think, after all, cut the skin with a knife, how to think is a very scary and deadly thing. In modern times, there are also many people who question, when doing surgery, obviously the scalpel cut the skin, but there is no particular amount of blood flow out, this is why?
First of all, it is because of the doctor's expertise. Because the surgeon in charge of the surgery, the size of the human body blood vessels are more knowledgeable, so in the operation will try to avoid the larger vessels, cut are only capillaries, so it is not easy to appear a lot of bleeding situation.
Second, because of the current scalpel problem. Many modern scalpels are used electrocoagulation knife, electrocoagulation knife electrode head generated by the current in contact with the human tissue, will quickly heat up to achieve tissue blood coagulation, has been avoided large blood vessels, and smaller vessels through this way, can also quickly help stop bleeding, so there will not be a large number of bleeding problems.
Finally, because the doctor will often inject the patient with some drugs before the operation, can help the patient to stop bleeding, the bleeding will be reduced during the operation, but it does not mean that the operation will not bleed, because the human body capillaries all over the body, is impossible to avoid, cut the blood vessels will certainly bleed, just can quickly stop and bleeding amount of the problem.