How can leeches be useful and dangerous to humans?
| August 31, 2021 | education
Leeches can truly benefit humans. They have a special substance called hirudin, which they inject into the bloodstream when they bite and stick to a person. This substance promotes blood thinning, which is used to prevent thrombosis in human blood vessels. But like any manipulation of blood, infection is possible with the bite of leeches, so you need to be careful.
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