MYTH - Men who commit incest are "abnormal" or "sick".

FACT- Only a small percentage of perpetrators have a recognizable mental illness. The "average" offender is likely to be a "normal" married man with a family and a job. He is often well respected in the community and otherwise unidentifiable as an offender. The only common factor, which researchers have found, is that the overwhelming majority of perpetrators are male.

http://parenting.families.com/blog/the-myths-and-facts-about-incest-and-child-sexual-assault