 The next age group I would develop on is the middle age that is above 50 years. Here I would like to divide that as male and female for practical reasons. The main cause of kidney injury in this age group again is obstruction and infection from the surgical point of view. So from the males above 50 years, the most common cause of kidney injury occurring is because of obstruction. Obstruction is due to prostate. As you all know, the prostate causes you symptoms like urgency, frequency and you are waking up at night 3-4 times. All these symptoms are prostate problem in a male, prostate obstructing the urine passage. Indirectly the kidney gets injured because of this reason. So all males above 50 years, I would like to do a surveillance for them annually with ultrasound as well as a urofluometry to check for the flow and the prostate, health of the prostate. In females above 50 years, the most common cause of urine infection is because of postmenopause. Menopause itself can cause even infection because of the lack of hormone. There will be a stitch or we say stenosis of the urethra, urine passage. Thereby the urine doesn't flow in a normal way. So all the females who have the symptoms like urgency, frequency, urine leak on cough and laugh should get themselves a checkup done with ultrasound and urofluometry to check for the cause of this infection. And thereby treating them helps to save the kidney also.