<s>[INST] I am 58 years old. weight 75 kg, height is 1.68 m. i found my legs are swallen. Checked blood urine etc but nothing found. Some body says its from kidney. but ultrasono shows nothing. i am thinking of seeing a nephrologist. what is your suggestion. is it a problem of nephrology? [/INST] Hello and welcome to Chat Doctor. As a Urologist, your urine, blood, scan reports, could've been sent. Now you should have your B.P. checked, and urine for micro albumin tested. Hope your blood creatinine has been done, with sugar, sodium,potassium and proteins. If microalbumin is high, 24 hours urine proteins, must also be tested. If ECG is normal, cardiac cause can be ruled out. You can get my expert opinion, by sending the reports, as a direct question. Chat Doctor.  Manga. </s>