From what you've described, I'm not sure your ex is an unfit parent. Cuts, scrapes, bruises, etc. are normal parts of a child's life. Kids trip and fall, all kinds of things happen. Unless your son has had stitches multiple times I doubt a judge will care much about small injuries.If your ex isn't taking your son for regular checkups and isn't getting him immunizations that you want him to have, not taking him to the doctor probably isn't a big deal either. I don't take my kids to the doctor when they're sick unless they're so sick they can't eat or drink. In three years my daughter has only been once for a non-routine checkup. Most illnesses do not need to be treated with anitbiotics or prescription medications, so there's really no need to take a child to the doctor. And as long as your ex isn't leaving your son with dangerous or neglectful people, that shouldn't be a concern either. I'd love to be able to drop my kids off at a friend's house so that I had the ability to run some errands alone or just so that I could have some time to myself.Unless you have a lot of proof that your ex is a neglectful parent and have other people who aren't related to you to back up that evidence, it's not likely that a judge will grant you sole custody. In all honesty, from what you've described it just sounds like you and your ex have different parenting styles. That doesn't automatically make him an unfit parent.