ok i did some research and don't claim to be right here .. but it does say that if you eat/drink more anti toxins it can stop bruising or the severity of it.. such as tea garlic ginger vitamin C .. i know i drink more tea now and eat a lot more garlic as i know it is good for me..

Also over time you can cause what they call hardening .. sort of like you play volleyball and you serve with the same forearm over time it won;t bruise and even if there is a mark it won;t last long...

It is not much to go on.. but our chemicals do change over time especially through menopause that that may be the reason.. but also by this time in our lives if we have endured a lot of bruising .. we may have done it to much which has caused the hardening ..

i am no doctor and do not have a lot of knowledge on this subject as i am just as lost as you are .. but these things i have found .. i hope someone else can come up with an answer that would be more definite //

just my opinion Hun

hugs
snow