<s>[INST] Dear Doctor, My husband was diagnosed with mild left pelvicalceal dilation with normal uretic jets. So far his other laboratory test for kidney, liver and artery doppler test were normal. But my problem is he has microscopic hematuria. Does it has something to do with the dilation of the left kidney?What causes the dilation? His GP did not give him medicine cause according to him sometimes it is normal to have hematuria and laboratory were normal. Please enlighten me about this. My husband is 43 years old, non smoker/ non drinker and don t feel any pain when urinating.Thank you,Len [/INST] Good Day, and thank you for being with Chat Doctor ! I would recommend doing a SCAN with IV contrast to check if there is obstruction. We have to rule out if the kidney is obstructed since this may cause kidney damage. Other cause of dilatation is urinary reflux which is can be harmful Also. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at: http://www.ChatDoctor .com/doctors/ Chat Doctor.  Best wishes </s>