Hydronephrosis, characterized by the swelling of one or both kidneys due to urine build-up, presents various symptoms that can significantly impact daily life. Common symptoms include flank pain, which may radiate to the lower abdomen or groin, and urinary issues such as frequent urination, urgency, or difficulty urinating. Other signs can include nausea, fever, and a general feeling ... https://livlong.com/blogs/health-and-wellness/hydronephrosis-causes-symptoms-treatment