Leech, commonly known as leech, is a long, flat black-green animal, and it has suckers at the front and back to absorb the biological surface. Leech, commonly known as leech, is a long, flat black-green animal, and strong suckers are attached at the front and back of leech, so as to help them tightly adsorb on the biological surface and facilitate its long-term blood sucking. Many times, people who swim in the wild and are adsorbed by leeches on the skin surface have no feeling at all, including not being able to detect its shadow. After all, when people found blood in some places, the leeches had already "eaten" and had already run away. In particular, we need to know that leeches secrete a substance called hirudin when they suck blood.
After hirudin enters the human body, it will inhibit the blood, and then cause massive bleeding of the wound, and even cause ischemic anemia in severe cases, which will have a serious impact on the health of human body or other organisms. Only in common cases, leeches are parasitic on the surface of human body, and it is hard to hear that leeches will enter the internal case of human body.
It is difficult for leeches to survive for a long time after entering the human body, and leeches entering the human body pose no terrorist threat to the human body. It is rumored that leeches will run around in human blood vessels or other internal organs when they are accidentally inhaled in the wild swimming, posing a terrorist threat to the human body. In fact, this rumor will not happen. It is difficult for leeches to survive for a long time and pose no threat to the human body. Even if leeches enter the human body through the nose and mouth, they will enter the human stomach along the trachea. The oxygen content in the stomach of human body or other organisms is very low, almost close to zero. Leech is an aerobic organism. Simply speaking, it can only survive in an aerobic environment, and will soon die if it enters a hypoxic environment.
There is also a lot of stomach acid in people's stomachs, and the biggest weakness of leeches in survival is on the skin surface. It seems that its head is very hard, but the skin surface is particularly fragile and soft. It is easy to die directly under the action of strong acid, and it may not pose any terrorist threat to the human body after entering the human body. The only places where leech can survive in human body are near nasal cavity or throat cavity where there is a lot of oxygen, but if it survives in these places, it can be easily taken out directly by manual measures.
After being bitten by a leech, you can take corresponding measures, and don't drag the sucker into the body. When people swim in the wild, they must take corresponding measures after being bitten by a leech, and don't drag the sucker into the body. It is suggested that you can gently pat the skin of the bitten part with your hand, and water it on the surface of the leech with irritating liquid, and then wait for 20 minutes and the leech will automatically escape.
Of course, leeches can't relax their vigilance after they escape by themselves. You should know that leeches will leave some substances in the process of sucking human blood. These substances may cause skin papules and so on, which need to be washed with clear water or treated and disinfected with medical alcohol in time.