The fact that you can’t urinate enough and have a little bit of swelling and soreness can be caused by factors such as pyelonephritis, ureteral stones, prostatitis, and so on. 1. Pyelonephritis: usually secondary to diseases like urinary tract infections, due to inflammatory substances stimulation will appear urination, frequent urination and other symptoms, usually accompanied by lumbar soreness and swelling and other symptoms, may also appear systemic symptoms, such as fever, fatigue and so on. 2. Ureteral stones: usually secondary to kidney stones, when the stone is stuck in the end of the ureter, causing irritation to the ureteral wall, it will cause urinary incontinence, pain and swelling in the lower back, and may be accompanied by hematuria, and in severe cases, it will cause urinary tract obstruction and hydronephrosis. 3. prostatitis: may be related to unclean sex, poor hygiene and other factors, can make the prostate gland localized enlargement, will cause a little bit of soreness and swelling, as well as frequent urination, urinary incontinence, urinary urgency and other symptoms, and when serious, it will lead to sexual dysfunction as well as mental and psychological disorders. The symptoms of a little bit of swelling waist a little bit of soreness is more obvious, it is recommended to consult a doctor for examination and treatment, to avoid delays in the condition.