Country singer Jo Dee Messina is facing another family crisis after her mother was hospitalised with pneumonia, just three months after undergoing life-saving open heart surgery.

The 42-year-old star kept a bedside vigil for her mum Mary following the procedure in April (13), even rescheduling a number of shows in Canada the following month (May13) to stay close to her sick mother in America.

Messina has now revealed her mother is facing a further health battle after contracting pneumonia.

In a post on her page on Thursday night (11Jul13), she writes, "Another trip to the Er (emergency room). We were at special care facility. Now back in hospital. Mom has pneumonia. 3 mos (three months) 2day (today) since surgery."