If a woman has the right to do what she wants with her own body; why is suicide illegal? If we cant legislate morality, why is suicide illegal? Most all states have laws against suicide. If you threaten to kill yourself, the police will be dispatched and you will be taken into custody and you will be prevented from committing suicide.. If you ask your doctor to administer medication to kill you, and he does, he will be arrested and charged with a serious crime. Why does a woman and/or doctor have the right to terminate a growing child inside the womans body but they dont have the right to terminate the woman herself?