If any radical surgery is performed for rectal cancer and uterine cancer, dysuria may occur. The symptoms of dysuria differ according to how many nerves governing the function of urination were injured at surgery.
Or, dysuria may be caused by postoperative chemotherapy, or exposure to radiation. If the nerves in the pelvis were injured, the desire to urinate may be reduced, urine may not be excreted, or difficulty in urination or urinary incontinence may be observed according to the degree of injury or the site of the injured nerve.
A rough standard for postoperative dysuria is shown in Table 1. If dysuria or urinary incontinence is observed postoperatively, various examinations will be performed, and measures or treatment will be undertaken according to the degree of disorder. In the case of dysuria (difficulty in urination, urinary retention, residual urine) after surgery in the pelvis, you have to perform urethral self-catheterization.
If postoperative dysuria is mild, the functions may remit generally half a year after surgery even if tentative treatment or measures are required. In the case of urinary incontinence, a suitable pad should be selected according to the amount of incontinence, and attention should be paid to skin care.
If you were diagnosed as having stress urinary incontinence, training of the pelvic floor muscle is effective. For this, please consult the outpatient clinic for stoma and urinary incontinence.
Table 1. Standards for dysuria
Force of urination was lost or urine is not excreted properly.
Urine cannot be excreted completely without straining.
Residual urine. Urine is not excreted.
A decrease or disappearance of the desire to urinate
Difficulty in dilating the urinary bladder
Urethral self-catheterization is a method to collect urine by inserting a catheter into the urethra by oneself a few times a day. Catheterization should be performed at certain intervals so that the volume of the urinary bladder does not exceed 500 mL.
Urethral self-catheterization should be performed after receiving the instruction of a nurse in advance.
Residual urine may decrease, the frequency of urethral self-catheterization may be reduced or urethral self-catheterization can be discontinued with the passage of time after surgery in many cases, but please do not discontinue it on your own judgment. If urethral self-catheterization is stopped, you should consult the doctor.