I fell in the bathtub and i want to know do i need stitches ?

Limited information so hard to assess, Where did you hit yourself and are you bleeding? . If bleeding does not stop in 1/ hour with pressure, swollen ,painful to walk use the limb, dizzy , nauseated, confused, go to urgent care. F/u/ w/ MD

When you post on this site the more info you provide the more likely we can provide a reasoned answer. You fell, but did you cut yourself? Where ? Is the cut more than 1/2 inch long? Is the bleeding stopped? Is the flesh gaping ? A small cut where bleeding has stopped rarely needs stitches. A cut over an inch long/gaping/bleeding usually heals best with stitches.