The right side of the bladder often feels sore, swollen, pain, may be physiological reasons, such as bladder holding urine caused. It can also be caused by pathologic reasons, such as cystitis, stones or urinary tract infections. 1. Physiological reasons: hold urine for too long, too much urine, will lead to overfilling of the bladder, the formation of bladder distension discomfort, by improving the drinking habits and urination habits of the way can relieve the symptoms. 2. Pathologic causes: (1) cystitis: inflammation of the bladder, belonging to the lower urinary tract infection, usually the patient can have frequent urination, urinary urgency, urinary pain, severe cases can appear hematuria, clinically, the patient can appear in the bladder area of the distension, discomfort. (2) Stones: urinary stones as well as tumors, mainly because of stone obstruction or tumor occupancy and lead to local soreness, swelling and pain and other symptoms. (3) urinary system infection: urinary system infection is mainly bacteria into the urinary bladder, produce urinary bladder mucosal damage. And the emergence of urine passing will lead to frequent urination, urinary urgency, urinary pain, and even lower abdominal swelling as well as fever, chills and other systemic inflammatory reactions. The appearance of the right side of the bladder often feel soreness, swelling, pain, exclude physiological causes, should be timely consultation, so as not to delay the condition.