Kidney complications refer to any issues or problems that affect the normal functioning of the kidneys. These complications can be caused by various factors such as infections, injuries or diseases that affect the kidneys, and can lead to a range of health problems if left untreated. Some common kidney complications include acute kidney injury, chronic kidney disease, and kidney infections. These complications can be managed with appropriate medical treatment and care, but it is essential to address them promptly in order to prevent further health complications.