Blood circulation problems are medical conditions that involve an interruption or obstruction of the flow of blood through the body. Clotting is one of the most common issues associated with these problems, and is caused by the formation of a mass of blood cells that can block the flow of blood. This can lead to serious health complications, such as stroke, heart attack, and pulmonary embolism. Treatment for clotting typically involves anticoagulants, which help to break down the CLOT and restore normal blood flow.