The Essen score is highly accurate and has good predictive value. The Essen score is a stroke risk prediction tool developed for the study of stroke, and has been shown to predict the risk of recurrent stroke, and composite cardiovascular events in patients in the stable or acute phase. Risk factors in the Essen score include age, whether or not one smokes, whether or not one has an underlying condition such as hypertension or diabetes, and whether or not one has had a previous myocardial infarction or other cardiovascular disease. The maximum score of Essen score is 9, 3 is considered as the cut-off value, >3 has a high chance of recurrence, and the higher the value of the score, the higher the risk of stroke and compound cardiovascular events. The specific scores are as follows. 1. A score of 0~2 is considered low risk, suggesting a low risk of recurrent stroke. 2. A score of 3-6 is considered medium risk, with an annual risk of stroke recurrence of 7-9%. 3. A score of 7 to 9 is considered high risk, with an annual risk of stroke recurrence of 11%. If the score suggests a high risk, it is important to go to the hospital in time to avoid delaying the condition.