Katherine Heigl claims she suffers from mild Obsessive Compulsive Disorder when it comes to cleanliness.
Besides OCD, the 'Ugly Truth' actress - who is married to musician Josh Kelley - claims she isn't the easiest person to live with.
She said: "I'm definitely a little OCD, I'm particular about how I like things and how I want things. I'm also obsessed with making lists!"
According to the stunner, who tied the knot in 2007, compromise is the secret to a happy home, reports Contactmusic.
She added: "You don't have to necessarily completely change who you are to be with someone you want to be with, but you do have to compromise a little bit. You have to let go of a little bit of yourself."