Poor urination: The main reason for poor urination is due to blockage in the urinary pathway or lack of bladder contraction. Under normal circumstances, the bladder has urine, will be very smoothly through the bladder “opening” and urethra discharge, but some people urinate very poorly, either very hard to urinate, or urine flow is very thin, shooting urine distance is also very close, some people even in the urinal side for a long time can not be discharged, in serious cases can develop to the inability to discharge urine, a large amount of urine “hoarded” in the bladder, become urinary retention, the patient very painful Obviously, the main cause of dyspareunia is due to obstruction in the urinary pathway or lack of bladder contraction. Foreign body sensation in urination: This is due to a foreign body sensation felt by the patient with urinary stones when urinating. Urethral stones are clinically uncommon. Most originate from the bladder and the urinary system above the bladder, such as kidney stones, ureteral stones or bladder stones. The stones may remain in the urethra or become lodged in the prostatic urethra, navicular fossa, or external urethral orifice during discharge. Rarely, they are secondary to urethral strictures, urethral atresia, foreign bodies, or urethral diverticula. Stones originating in the urethra are quite rare. They are usually solitary stones. Most of the stones with co-infection are composed of ammonium magnesium phosphate. In women, the majority of urethral stones occur within the urethral diverticulum. Thinning or interruption of urine flow: urinary tract symptoms of acute prostatitis: burning pain during urination, urgency, frequency, dribbling and purulent urethral discharge. Bladder neck edema may cause poor urination, thin or interrupted urine flow, and in severe cases, urinary retention. Fluctuating urine stream: Most patients with abdominal aortic aneurysms are asymptomatic and are mostly found during routine physical examinations called quiet abdominal aortic aneurysms. With regular physical examinations, this type of aneurysm has been found to be increasing In symptomatic patients, the common symptom is a pulsating abdominal mass, followed by dull pain around the umbilicus or in the upper abdomen or only abdominal discomfort. When the aneurysm invades the lumbar spine, there may be pain in the lumbosacral region. Sometimes the aneurysm may even penetrate into the duodenum or jejunum, resulting in the manifestation of gastrointestinal bleeding. Interrupted urine flow: It refers to the sudden interruption of urine flow during urination, sometimes accompanied by severe pain in the head of the penis. The most common cause is that in prostatic hyperplasia the patient must increase the strength of the abdominal muscles in order to drain the urine. In advanced stages of the disease, the urine cannot be exhausted in one go, but requires another breath to continue urinating, which manifests as an interruption of the urine flow. Prostate enlargement that progresses around the urethra may have only mild manifestations or even no symptoms. If it progresses toward the bladder neck, severe symptoms may occur even if the enlargement is not large. Patients usually show early signs of increased urination, which is more pronounced at night. Each urination is often incomplete, leaving residual urine, which, over time, can lead to congestion and edema in the bladder neck. As time goes by, the bladder muscles become fatigued, urination becomes more feeble, and residual urine increases, when the prostate becomes more congested and edematous, making the urine line slim and bifurcated. Sometimes the urine line does not form a line and drips out, sometimes the urine line splits into two strands and you have to wait half a minute to a minute to go to the toilet to urinate. In the later stage, if the amount of residual urine is equal to the normal bladder capacity, the urine will automatically overflow when the sound of running water is heard or when the reflex is caused by other stimuli. If the bladder neck outlet is extremely edematous and congested, acute obstruction will occur when stimulated, such as cold, holding urine, overexertion, etc., and the ability to urinate automatically will be completely lost, which is called “acute urinary retention”.