Here it doesn't matter if you go on your own, go on recommendation of provider, or involuntarily you are treated the same. As stopdog said even if you go voluntarily you don't necessarily get to say I am here voluntarily so I want to leave now. If the Dr. feels you are of danger to yourself of others (unable to care for yourself, so disorganized you can't provide for your basic needs, homicidal or suicidal) they can then convert you to involuntary if you insist on leaving. However, it is not like the 5150 Allyishopeful mentions because here that just means we have 72 hours to apply to the court to keep you longer. You could be discharged anytime in that 72 hours if the Dr. feels your mental status has changed.