How many leeches does it take to kill you?

Online Answer
The numbers on that work out pretty simply. The average human adult has about 4.5 to 5.5 litres of blood, and leeches suck about 5-15 ml in one session.
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The numbers on that work out pretty simply. The average human adult has about 4.5 to 5.5 litres of blood, and leeches suck about 5-15 ml in one session.