Regarding the transfer and merger of social security in the three places, I urgently ask all brothers and sisters for help. Thank you very much

Can you decide where you will retire? If you are not sure, it is recommended not to transfer now. Social security transfer follows two principles. First, transfer to your domicile. No matter where you are insured and how many years you have been insured, you can transfer back to the social security bureau where your household registration is located for retirement. Two, transfer to the payment period of more than 10 years, for retirement. If you don't transfer now, the Social Security Bureau will put you on record, and you can transfer together when you retire. Because the medical part can't be transferred now, maybe one day the policy will change and the medical care can be transferred. Whether it can be turned now has no effect on the current safety.