Rapid blood clotting refers to the shortening of the time it takes for blood to change from a liquid state to a solid state. When blood clots quickly, the body is prone to thrombosis or embolic disorders. There are two common causes of rapid blood clotting, one being blood cell factors and the other being plasma-based factors. The most common blood cell factor is the increase in the number of various blood cells, such as patients with primary thrombocytosis, due to the abnormally high number of platelets, it is easy to have faster blood clotting; at the same time, patients with true erythrocytosis, will also have symptoms of faster blood clotting; there are also patients with hyperleukocytic leukemia, due to the abnormally high number of white blood cells, prone to hyperleukocytosis viscosity, the patient develop thrombosis. Plasma-based factors are common in patients with metabolic syndrome, that is, patients with hypertension, hyperglycemia, high body weight, and hyperlipidemia. The human body is also prone to accelerated blood clotting due to increased plasma viscosity and slow blood flow.