Leah Messer
Leah MesserFacebook/Teen Mom 2

It's been a few months since "Teen Mom 2" star Leah Messer regained custody of her twins Aliannah and Aleeah. Since then, the reality star has posted several pictures of her family on Twitter, signalling that life with her daughters is comforting. Leah, however, was the recipient of some troubling news about Ali, 6.

According to a Radar Online report, Leah and her ex-husband Corey Simms were told that their daughter may be bound to her wheelchair. "So I think that she needs to have [a] power wheelchair all the time. So the most important thing is to fix her power wheelchair," the report quoted Ali's neuromuscular specialist, Dr. Tsao as saying.

The former couple visited the doctor to get a clear prognosis on Ali's muscular dystrophy. They were told that she will begin to get weaker after she turns 7, and were advised to sign her up for Make-A-Wish Foundation.

"Make-A-Wish, she may qualify because many children with muscular dystrophy will qualify. If you haven't done that, you should apply," the doctor said.

Although Leah, 23, tried to explain that she wants her daughter to make her own decision, the neuromuscular specialist reminded them that Ali may not enjoy activities as she begins to grow old.

Leah and Corey's expressions, captured in a sneak-peek video of "Teen Mom 2" Season 7, is heart wrenching. The former couple, who were mired in an ugly custody battle, finally seem to be on the same page while dealing with their daughter's debilitating health.

Leah, on her part, appears to be positive and strong. The West Virginia native seems to have dedicated her time to her girls. The TV personality recently released a series of family portraits of her and the three daughters. She tweeted: "A sneak peek of some of our spring family portraits! #Precious #AAA."

"Teen Mom 2" Season 7 airs Monday, March 21 at 10 p.m. EST on MTV.