Due to the different insurance periods, health insurance can be divided into long-term health insurance and short-term health insurance. Long-term health insurance refers to health insurance with an insurance period of more than one year or an insurance period of less than one year, but with a guarantee renewal clause. Short-term health insurance refers to the health insurance with the insurance period of less than one year, excluding the guarantee renewal clause.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.