see your diabetic doctor or a podiatrist. you may have a fungal condition of your nail(s) called onychomycosis but this will need to be confirmed and properly treated. not self-treated. as you know i have no way of examining your feet! it is best not to mess with your own nails when you have diabetes.
what to do when toenail comes off. i am a diabetic but my toe nail was getting thick and discolored and it came off what should i do to treat it or should i see my diabetic doctor