The ranges are mild, moderate, and severe. Hemophilia is passed on to children from mothers who carry the trait, but do not have symptoms. It affects mostly males. A man with the disease cannot pass it on to his sons. All of his daughters, however, may pass it on to their children.
Newborns often show no signs of the disease until they are circumcised.
Signs may begin with bruising beneath the skin as a child starts to crawl or walk. Minor cuts and wounds are not a major problem. They are usually easy to treat with pressure and a bandage. However, internal bleeding is a major problem. Sometimes the problem is not known until troublesome bleeding occurs.