父母來美探親，延期了一次，到三月底到期，但是１月份母親摔了一跤，骨折了，我想再幫他們延期一次，徹底修養好了再回去，不知道第二次,延期半年的成功率大不大，
-I saw someone like your parents did it sucessfully. So, just try it by providing the evidences of your mother's injure. Also address that your father needs to take care of your mother, etc.
還有會不會影響下次簽證。
-No.
請位專家幫忙分析一下，謝謝。
