What do you mean by social security withholding, medical insurance withholding and pension withholding displayed by SMS every time an individual pays social security?

This is a reminder of urban and rural medical insurance deduction.

Urban and rural medical insurance deduction reminder to ensure the normal use of medical insurance cards for insured persons from the new medical insurance year. Withholding and remitting social insurance premiums refers to the system in which payment units withhold and remit the pension, medical care and unemployment insurance premiums that employees should pay from their wages. Withholding and remitting is the right and obligation entrusted to the employer by law, and the payer and individual shall not refuse or interfere.