Can the social security in Yuhang District and the social security in the main city of Hangzhou be universal?

Yuhang is a district of Hangzhou, but the social security and the main city are completely independent. After joining the insurance in Yuhang, except for the personal medical insurance account accumulated in the main city of Hangzhou, it was frozen and temporarily unavailable. It makes no difference. If the amount of medical insurance account is not much, or it is not needed for the time being (anyway, Yuhang is insured and there are medical insurance accounts accumulated). You don't need to deal with it.

I guess manpower wants to help you with the social security and medical insurance transfer procedures.

Maybe I will work in the main city of Hangzhou in a few years. I don't want to use the money in the medical insurance account, so I don't want to transfer it. If you have a foreign hukou, you will not transfer to the main city if you want to transfer to a certain age. You have insurance records in Hangzhou, stopped halfway, went to work in other places for a while, and returned to Hangzhou to be insured. The original medical insurance account frozen in Hangzhou is easy to use. Insurance records in different places can also be transferred.

Seeking adoption is a satisfactory answer.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.