Usually, patients suffering from hydronephrosis show less or no symptoms, especially if the formation of blockage over the time is slow. Although, some patients show severe symptoms that include:
- Acute pain in the abdomen or flank in the body.
- Nausea or vomiting.
- Painful and difficult urination.
- Frequent urge to urinate.
- Urgent need to urinate.
- Infection in the urinary tract.