Sexual intimacy is a physiological need for both partners and also a bond that strengthens their relationship. However, many people report experiencing lower back pain after sexual activity. Why does this happen? Let's discuss the reasons for lower back pain after sex.
Why do I experience lower back pain after doing certain things?
1. Sudden interruption
Physiological studies have found that if sexual intercourse is suddenly interrupted, it causes congestion in the entire reproductive system and pelvic cavity, which cannot dissipate quickly, leading to a state of tension in the cerebral cortex. In addition, the inability of organs such as the seminal vesicles to empty in a timely manner can also keep the male cerebral cortex in an excited state, which is difficult to relieve quickly, eventually leading to lower back pain.

2. Too frequent
Excessive sexual activity is one of the major causes of lower back pain after sexual intercourse. This is because the lower back exerts the most force during sexual activity, so frequent sexual activity can lead to lumbar muscle strain, causing soreness and pain in the lower back muscles.
3. Failure to reach climax
Sexual pleasure and orgasm are generally the foundation of sexual intercourse, and orgasm is mainly caused by the congestion of blood vessels in the genitals. When organs become congested under stimulation, if orgasm is not achieved, it can lead to lower back pain.
What are some other causes of lower back pain in men?
Besides the three reasons mentioned above that cause lower back pain after sexual activity, for men, lower back pain after sex may also be related to inflammation and other lower back problems. When men have certain inflammations, such as prostatitis , they may also experience lower back pain after sexual intercourse.
In addition, if you already have lower back problems, such as herniated discs or sciatica , these conditions can worsen after sexual activity . Excessive movement or force during sexual activity can also cause lower back pain .
Therefore, if a man experiences frequent lower back pain after intercourse, he must find the cause and treat it accordingly.

Further: Beware of accidents during sexual activity
It is important to note that during sexual activity, one must be wary of the following three potential accidents:
I. Sudden death
Sudden death is more common in elderly men; simply put, it means dying during orgasm during or after sexual intercourse.
Tests have shown that breathing becomes rapid during sexual activity, and the heart rate increases even faster, reaching up to 180 beats per minute, during orgasm . Furthermore, among those who die suddenly, myocardial infarction is the most common cause, followed by cerebral hemorrhage.
II. Asthma attack
For people with pre-existing asthma, asthma attacks are most likely to occur during sexual activity. This is mainly because, in addition to certain psychological factors such as tension, fear, and anxiety, allergies can also occur due to semen, condoms, body odor, or clothing. These can trigger allergic asthma. If an asthma attack occurs during sexual activity, it must be stopped immediately, and asthma medication should be taken promptly. If the asthma is not relieved, medical attention should be sought immediately.

In summary, to avoid lower back pain after sexual activity, it is essential to maintain a regular sexual routine and avoid excessive frequency. Generally, 2-3 times a week is suitable for young people, while once a month is sufficient for older adults.
References:
[1]. Why do I experience lower back pain after sexual intercourse? Mainly due to these four reasons . Family Doctor . 2018-09-25
[2]. Wang Junfeng . Five types of unexpected sexual encounters to be careful of [J]. Health Preservation Guide (Part 1) , 2013: 90-90.