Blood or pus in your urine. Nausea, vomiting, fever, or chills. Abdominal fullness or swelling. Weight gain that you cannot explain.

Can kidney problems cause weight gain?

Kidney problems

Sudden weight gain or swelling in the body could be a symptom of kidney disease, such as kidney failure or nephrotic syndrome, which is damage to the kidneys. If the kidneys are not functioning correctly, the body may retain fluid, resulting in weight gain.

How does hydronephrosis affect the body?

Severe cases of urinary blockage and hydronephrosis can damage the kidneys and lead to kidney failure. If kidney failure occurs, treatment will be needed with either dialysis or a kidney transplant. However, most people can recover from hydronephrosis if treated promptly.