Frequent urination with right lower abdominal cramping may be caused by urinary tract infection, prostatitis, and right lower ureteral stone. 1. urinary tract infection: such as cystitis or urethritis, due to the inflammation of the bladder or urethra stimulation, resulting in bladder, urethra smooth muscle spasm. It will make the patient appear the right lower abdominal swelling symptoms of frequent urination, serious patients can cause pyelonephritis, fever, back pain, chills and other phenomena. 2. Prostatitis: the prostate gland is close to the bladder and urethra, so when the prostate gland produces inflammation, it is very easy to stimulate the bladder, resulting in the patient’s right lower abdominal distension and frequent urination. 3. right ureteral stones: patients if the right ureteral stones, will stimulate the right abdominal pain frequent urination, can also be accompanied by urinary urgency, urinary incontinence, urethral blood and other symptoms. Patients with symptoms of frequent urination in the right lower abdomen, should go to the hospital in a timely manner, under the guidance of the doctor to clarify the cause of the disease before treatment.