In various falls I have lacerated a palm, broken an elbow, sprained an ankle, broken a toe, and bruised my ribs.
The strange thing about falls is that for me they are absolutely unpredictable. I just go down with no warning. I don't have the ability to anticipate a fall or protect myself when I feel myself falling, so am much more susceptible to injuries.
Not only do the injuries from a fall seem to speed up progression, they also diminish my quality of life as I recover from the injuries. I want to get the most out of my remaining time, and that means I need to avoid these kinds of injuries.
And, I have never had a "serious" injury. That is, I have never injured myself in a life-threatening way. Others have, and some have died from those injuries.
Even though I can still walk a bit, I have been using a wheelchair since shortly after diagnosis. All but one of the injuries reported above occurred in falls that happened while I was being diagnosed. Once the doctors impressed on me the importance of not falling, I have been a faithful user of supportive devices, including the wheelchair, to reduce the likelihood of falling.
Steve