MBP keyboard bulging, might be battery expanded/swollen

Hi All,

I have a MBP(MacBook Pro) 15-inch: 2.5GHz (***), purchased in November 2016.

Today I noticed that the keyboard/touchpad was bulging, but the MBP works fine so far, I've read a number of posts here in Apple Support Communities implying that MBP battery might be causing the problem.

In my case, I used the laptop for more than 2 hours per day nearly every day for less than two years with the power supply plugged in while I was using it. For most of time, the power supply was connected when it was not in use, even sleeping.

Any suggestions will be appreciated.