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Hemophilia is a rare, inherited bleeding disorder. The disorder restricts the body function of creating blood clots, which is a process that is necessary to stop the body from bleeding. People who have hemophilia will often bleed longer after an injury, bruise easier, and incur an increased risk of bleeding into muscles and joints. The severity of hemophilia may vary from mild cases to severe cases. People with mild cases may only experience the symptoms following serious injury or surgery. People with severe cases of bleeding into muscles and joints may experience permanent damage. Rare cases may involve people bleeding into their brains, which may result in headaches that last a very long time, a decreased level of consciousness, or seizures. Hemophilia is generally inherited from someone's parents from the X chromosome when it contains a nonfunctional gene. In rare occasions, a new mutation can occur while a person is in early stages of development or later in life when an...