Why do you have leeches on your house?

Leeches on your house could be attracted by damp conditions or nearby water sources, as they thrive in moist environments. They might be seeking shelter or a place to find food, particularly if there's an abundance of animals nearby. While they are typically found in natural habitats, their presence near human dwellings can be a sign of environmental factors that favor their survival. It's best to remove them carefully and address any conditions that may be attracting them.