You need to send your workers for a medical examination before their Work Permit is issued.
Requirements for the check-up
You must send your workers for a medical examination by a Singapore-registered doctor within 2 weeks of their arrival in Singapore. Bring along the medical examination form when the worker goes for the tests.
The worker must pass the examination, and you need the completed medical form to get the Work Permit issued. Those who fail the examination will have to be sent home.
The medical examination screens the worker for 4 types of infectious diseases (tuberculosis, HIV, syphilis and malaria) and checks if they are fit to work.
You can send your workers for more tests if you have specific concerns about their health.