Euthanasia is the intentional ending of a patient's life by a physician, usually through lethal injection. There are two types: active euthanasia is direct action taken to end life, while passive euthanasia is withholding treatment allowing death. Voluntary euthanasia is legal in some places with consent, while non-voluntary and involuntary euthanasia conducted without or against consent are considered illegal and murder. Islam prohibits all forms of suicide and euthanasia based on Quranic verses commanding that life is sacred and not to be taken, as life is a gift from God that should be lived with courage and dignity.