No, having a large number of clots is not normal. When a blood vessel is injured or damaged, blood clots are a natural part of the healing process. However, when blood clots form abnormally or excessively, they can cause serious medical complications such as deep vein thrombosis, pulmonary embolism, stroke, or heart attack. If one is concerned about their risk of blood clots, speak with the doctor about the risk factors and any potential preventative measures one can take.