Generally speaking, after the discharge formalities, the hospital will refund the money to the original credit card. After paying the hospitalization expenses by credit card, the cardholder will directly refund the cash when leaving the hospital. If individual small hospitals can't refund cash, the extra part needs to be returned to the original card at the time of settlement, and the cardholder needs to take the credit card to the financial department of the hospital for a refund.
It is suggested that cardholders should not use the hospital to refund hospitalization fees to cash out the credit line in large amounts, because it is very likely to be frozen by banks on the grounds of transaction risk. Just pay the hospitalization fee appropriately, and don't spend too much money on the hospitalization fee.