Is it illegal to catch leeches in Medog to make money?

It's not illegal. Because Medog leech is not a national protected animal, it is not illegal as long as it does not capture national first-class or second-class protected animals, violate criminal law and laws, and damage the environment. Leech, also known as leech, has the effects of breaking blood and dredging menstruation, removing blood stasis and eliminating symptoms, and is often used to treat amenorrhea due to blood stasis, abdominal mass, stroke hemiplegia, traumatic injury and so on.