I've read so many descriptions of undermining, i just want to know, in simple terms, what exactly is it? how is it different from tunneling? and how are both different from sinus tracts? If you have any photos of the 3 please share. I've read many conflicting definitions so i really need help. I am an RN, BSN, but nevertheless, I'd almost prefer to have the definition in layman's terms because i seem to be having such a problem really understanding exactly what these 3 terms mean.
thank you so much.