It is unlikely pouring sugar in a wound will do much for clotting. You'll be better off applying direct pressure. But for centuries, sugar (and honey) has been poured into wounds to fight infection. Bacteria cannot grow on sugar.

Does sugar make blood coagulate?

The American Heart Association states, “Diabetes increase the risk of plaque buildup in the arteries, which can cause dangerous blood clots.” Studies also link that hyperglycemia (high blood sugar) with abnormalities of coagulation, leading to a tendency to form blood clots.

Can you use sugar to stop bleeding?

To treat a wound with sugar, all you do, Murandu says, is pour the sugar on the wound and apply a bandage on top. The granules soak up any moisture that allows bacteria to thrive. Without the bacteria, the wound heals more quickly. Evidence for all of this was found in Murandu's trials in the lab.