Why can't I use the social security medical insurance card Zhanjiang bought in Guangzhou? Didn't you say it was universal?

As far as the current policy is concerned, the medical insurance card cannot be used in other places. For those who often travel abroad or relocate after retirement, you can register at the medical insurance center, so that even if you see a doctor in a different place, the medical expenses after consumption can be reimbursed at your medical insurance location. Of course, if you live or work in a foreign country for a long time, you must register with the social security center, so that both your permanent residence and the place where medical insurance is located can receive medical insurance at the same time, but if you go to a big city for medical treatment, the reimbursement amount may not be as high as that in a small city. So far, China has not established a national overall social security system. You can transfer the medical insurance card through the unit, so that your five insurances can be put together. Otherwise, if you do it yourself, you may not do it thoroughly, and things will be involved when you need it urgently. You only need to fill in your relevant information carefully on the registration form of basic medical insurance for urban workers.