Bank of Communications withholding social security includes medical insurance expenses.

That's right. According to the inquiry of accounting schools, some units entrust banks to withhold social security funds to pay medical insurance expenses every month for convenience. According to the relevant regulations of human resources and social security departments, there are five insurances in the social security fund paid by the unit for individuals every month, namely endowment insurance, medical insurance, work injury insurance, maternity insurance and unemployment insurance.