<s>[INST] I am a 60 year old male, in good physical condition with history of elevated cholesterol (controlled with medication), and chronic low back pain.  For several months now, I have experienced profuse sweating in my lumbar region, so much so that it soaks through my pants and I have to place a napkin between my skin and underwear.  My FP said that he does not know what the cause may be....any ideas or recommendations? [/INST] Hi, Sympathetic overactivity of nerve cause increased sweating. You need to consult a neurologist for better understanding/treatment. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr S.R.Raveendran, Sexologist </s>