While it is best to follow the instructions of your doctor, patients always have the right to choose whether to agree to a treatment, procedure, or test. If failing to comply with your doctor’s directions were the cause of your injury, a lawyer for the doctor or hospital will be able to make a strong case against you. On the other hand, if the instructions you did not follow have nothing to do with your injury or how you were injured, your actions will not be as relevant. Your ability to bring a case depends on what caused your injury.