My mom is 55 yrs old , have diabetes,she has a bad body odour ,my couch smells even after she move to a different place.what is the cause?

DM bad body odor: My mom is 55 yrs old , have diabetes,she has a bad body odour ,my couch smells even after she move to a different place.what is the cause? ANS: there are a number of "bad" smells in diabetes. Suggest she is leaking urine if it smells like pee/ammonia. Smells sweet it may be vaginal drainage monilia. if like stool, leaking BM. Dead meat bad ulcer. She needs to be examined by her Dr or nurse soon.