Hello. Yes it is important she sees a vet to diagnose, and determine the best course of action, and whether ongoing pain relief is needed. I'm sorry the growths don't look pleasant for her, and it's very likely they are causing pain. It's good she seems well in herself, apart from her mobility. They could be benign growths, but may need surgery, and the vet could assess whether she is suitable for surgery, or for ongoing care with adjustments and pain relief or other options.