Why do I feel the urge to urinate after sex but can't?

Both men and women experience difficulty urinating after sexual intercourse

Some people can't wait to urinate after sexual intercourse, while some people can't urinate for half a day or even a day after sexual intercourse. What's going on? It turns out that when a man is sexually excited, the bladder sphincter is in a highly tense state, so when he has an erection, he will not feel the urge to urinate. Generally speaking, after orgasm, the congestion is fully eliminated, the penis is basically flaccid, and the tension on the bladder sphincter is released. During this period of sexual excitement, the bladder sphincter is overly tense and fatigued. After the tension disappears, you will feel the urge to urinate, which is normal. For women, the urethra opening is easily stimulated directly or indirectly during sexual intercourse, and of course it is more likely to feel the urge to urinate after sexual intercourse.

On the other hand, both men and women will experience difficulty urinating after sexual intercourse, which is often manifested as an inability to urinate 6 to 10 hours after sexual intercourse, often accompanied by varying degrees of urinary retention. The cause of the disease is mostly due to excessive tension, over-excitement, and spasm of the urethral sphincter and detrusor, and is not pathological. In women, the perineum becomes higher and harder, and the external vaginal opening contracts in non-paras. The following prevention and control methods can be adopted:

(1) During normal sexual intercourse, avoid being overly excited or nervous. It is best to urinate once before and once after sexual intercourse. Develop a habit of urinating. This can prevent urinary tract infections that may occur during sexual intercourse and maintain the function of the sphincter and detrusor muscles. If you want to get pregnant, you should not get up to urinate immediately after sexual intercourse to avoid premature leakage of semen.

(2) Once dysuria occurs, the doctor should try to relieve the patient's concerns and give appropriate sedatives or estrogen. If the symptoms do not improve, the doctor can perform urethral dilation if necessary.

(3) Avoid having sex when the woman’s menstrual period is heavy. If you have sex at this time, menstrual blood may seep into the man's urethra. It is okay if he urinates after intercourse to flush it out. Otherwise, although there will be no abnormal feeling at the time, he will be unable to urinate the next day. Because the menstrual blood has coagulated and blocked the urethra. At this time, you can only seek medical treatment.

Ejaculation and urination usually do not occur at the same time

Some men can have orgasm and ejaculate during sexual intercourse, but what is excreted is urine, which often wets the bed sheets, making the woman feel disappointed and disgusted. Patients have a heavy mental burden, which often leads to emotional discord and even divorce. The patient had no problems with libido and erections. There is currently no reasonable explanation for this phenomenon. Because urination during ejaculation is extremely rare, it is difficult to fully examine and evaluate. Ejaculation is an unconditioned reflex, whose center is in the lumbar spinal cord, while urination is an "autonomic activity" consciously controlled by higher nerve centers. It includes a series of conditioned and unconditioned reflexes, and its lower centers are also in the lumbar spinal cord. However, normally, even if you "urinate" in your sleep, actual enuresis will not occur, which shows that the brain's commands are not easily issued.

Therefore, it is generally not the case that ejaculation and urination occur at the same time. Occult spina bifida, cerebral dysplasia, epilepsy, etc. may have a certain impact on the urination reflex, causing the cerebral cortex to lose control of urination in certain circumstances. For example, a large amount of fibrous scar tissue in the occult sacral hiatus compresses the afferent and efferent nerves related to the urination reflex, causing the excitement of the ejaculation center to trigger the reflex of the low-level urination center at the same time, thus causing the rare phenomenon of simultaneous ejaculation and urination. I believe that people will get more accurate answers in the near future.