What is the reason for getting up in the morning and urinating less?

In the morning to see a doctor because of less urine, there are no other interference factors. For example, the day before drinking water very little, urine very little after getting up in the morning, this is a very normal situation, if the amount of water increased urine will return to normal, this time there is no problem, mainly lifestyle adjustment can be. But if you remove this factor, morning urine very little, and combined with eyelid edema or lower limb edema, this time to consider whether there is a problem with heart function. After lying down, a lot of water has not been filtered out of the body through the kidneys. It may be that there are problems with heart function, lung function or kidney function. Go to the hospital as soon as possible to see a doctor, take a routine blood sample to check kidney function, and then see how much urine osmotic pressure there is, whether there are kidney problems or whether there are other problems in the heart. To treat them differently, after such an examination, you can find related problems.