Squeaky brakes in reverse

My brakes squeak whenever I apply them going in reverse. I feel like I’m waking up the whole neighborhood when I back out of the driveway in the morning! They do not squeak when I apply them going forward. I do plan on having them looked at, but would like some idea as to what the problem might be before I take my car in to the shop. Thanks.

When my Accord did just that, I needed pads & rotors.