Male abdominal triangle distension hidden pain like holding urine feeling is generally the first thing to consider is the inflammation of the bladder or prostate inflammation, bladder stones may also cause hidden pain in the abdomen. 1. Cystitis: Generally speaking, the main clinical manifestations of acute cystitis are frequent urination, urinary urgency, dysuria and pain in the lower abdomen. Chronic cystitis has a slower onset and a milder inflammatory response. For bacterial cystitis, attention should be paid to personal hygiene, especially cleanliness of the vulva, to reduce urethral irritation. 2. Prostatitis: The radiating pain caused by the prostate gland can cause pain and hidden pain in the lower abdomen as well as bilateral groin area. Prostatitis is a common disease in urology, if it is prostatitis caused by pain in the lower abdominal triangle, in addition to follow the doctor’s instructions, daily to drink more water, diligent urination, regular sex, can not hold back ejaculation, do not frequent masturbation, to avoid unclean sexual intercourse. There may be other reasons for men’s abdominal triangle swelling and hidden pain, it is recommended to consult a doctor in time.