![]() Forcibly pulling them off may leave their jaws behind in the wound. However, if leeches need to be removed by hand, their grip should first be loosened with heat, alcohol, or acid before pulling them off. Once the leech is full it will release itself and drop off. The feeding process of a leech usually lasts about 20-40 minutes where 10-15ml of blood is ingested and their body size may increase 8-11 times their original size.
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