Using colostomy bag after hernia surgery, after 7 days haven’t passed stools?

Hi my mom uses a colostomy bag she did a surgery on 10/1/17 to remove a hernia she pass stool 7 days after, it has being 7 days now she haven’t pass stool and vomiting a lot doctors take xrays give her laxatives but nothing she’s at the hospital now and all the doctors are doing is just waiting for her to pass stool isn’t it too long now please tell me what u assume might b happening to her