What to do if there is a lot of residual urine

Urination is an activity that the human body performs every day. It can expel excess water and useless substances from metabolism out of the human body. The human body cannot excrete all the urine during urination, and some urine will remain in the bladder. This urine is called residual urine. Some people will have too much residual urine. In this case, people need to take timely measures to regulate it. Here we will introduce what to do if there is too much residual urine.

When urinating, the urine in the bladder cannot be completely emptied and remains in the bladder. The urine remaining in the bladder after urination is called "residual urine". In clinical practice, it is generally believed that further treatment is required when the residual urine is greater than 60 ml. The main causes of residual urine include bladder outlet obstruction, bladder detrusor weakness, and incoordination between the detrusor and urethral sphincter. Common clinical diseases: neurogenic bladder; prostatic hyperplasia (elderly men); bladder neck obstruction (elderly women), etc. The main hazards of residual urine are urinary tract infection, stone formation and renal function damage. The first thing to do is to control the infection: drink plenty of water and take oral antibiotics. Secondly, you need to exercise bladder function.

Residual urine measurement is one of the important diagnostic methods for prostatic hyperplasia. Due to prostate hyperplasia, patients have difficulty urinating. As the obstruction worsens, the urine in the bladder cannot be completely emptied during each urination and remains in the bladder. The urine remaining in the bladder is called "residual urine." The occurrence and amount of residual urine reflect bladder urination dysfunction. In the diagnosis and treatment of prostatic hyperplasia, the measurement of residual urine is an indispensable step. There are three methods for its measurement: transabdominal B-ultrasound measurement, catheterization and intravenous urography.

Transabdominal B-ultrasound measurement does not cause any discomfort to patients and is the most commonly used method. It does not cause urinary tract infection, and is the best choice especially for those who need to repeatedly measure residual urine volume during treatment, but this measurement method is not accurate enough.

Catheterization is a method of inserting a catheter to drain urine after the patient urinates and measure the residual urine volume. This method is accurate and reliable, but it causes discomfort to the patient and is not easily accepted by the patient.

Intravenous urography is a method of taking a film during the bladder filling phase and after urination to observe the residual urine volume. This method cannot be quantified and has little practical value.

The residual urine volume in the bladder is measured by catheterization or B-type ultrasound examination immediately after urination. Normally it is less than 5 ml. The presence of residual urine indicates that the bladder's urination function has been decompensated. The residual urine volume is proportional to the degree of lower urinary tract obstruction. During the treatment of lower urinary tract obstruction, repeated measurement of residual urine volume can determine the efficacy. This examination can be used to determine the corresponding symptoms.