If someone stabs you in a non lethal but can become lethal spot if its untreated do you take it out or leave in the knife?

First... I hope this has not happened in a way you have experience. However, never remove the object. Always allow a medical professional to do so. Removal can result in further injury and possibly even infection. I can't stress enough stabbing wounds of any sort should be treated by a medical professional.

also, make sure that if someone tries to kill but stabs in a no-lethal spot, pretend ur dead or you'll get stabbed again (but try to call 911)