Heparin is used in many medical conditions related to blood clotting, as it works as an anticoagulant to prevent the formation or increase in the size of clots. It is usually recommended in cases of preventing deep blood clots, especially in patients who have been bedridden for long periods or have undergone surgery, treating blood clots in the veins or lungs, maintaining blood fluidity during medical procedures such as dialysis or the use of intravenous catheters, preventing the formation of clots in some medical devices such as artificial heart pumps, the use of heparin requires close medical supervision to avoid any complications or potential side effects that may result from excessive blood thinning.