In 2023 1 month, why did dangyang city's medical insurance suddenly decrease this month?

The social security base has declined.

The social security payment base is usually determined according to the average monthly salary of employees in the previous year. The higher the payment base, the higher and lower the social security fees that employees need to pay each month. If the employee social security base is reduced, the monthly medical insurance payment will also be reduced, and finally the amount of personal medical insurance account will also be reduced.

Medical insurance generally refers to basic medical insurance, which is a social insurance system established to compensate workers for economic losses caused by disease risks. The medical insurance fund is established through the contributions of employers and individuals. After the insured person has medical expenses, the medical insurance institution will give certain economic compensation.