There are recessive genetic diseases in the family. If you find a healthy man, will it be passed on to your children?

It depends on what genetic disease it is.

A recessive genetic disease with X is bound to pass on the disease-bearing gene to future generations. Autosomal recessive genetic disease depends on whether the man carries the disease-causing gene. If not, he will definitely not suffer from genetic disease, but he may carry the disease-carrying gene, with a one-quarter chance of getting sick and a one-quarter chance of not carrying the disease-carrying gene.