The scrotum covering the testicles should not be as tight as possible.

The tightness of the scrotum is regulated by body temperature; it helps regulate testicular temperature by adjusting its own tightness. Normal testicular function requires an environment slightly cooler than body temperature. The scrotum regulates testicular temperature through contraction and relaxation, thereby ensuring normal sperm production. If the scrotum is wrapped too tightly, it can hinder blood circulation, affecting normal testicular function and potentially leading to excessively high testicular temperature, thus impacting sperm production and quality.

To maintain testicular health, avoid wearing tight underwear or pants for extended periods, especially in hot weather. Maintaining a healthy weight and avoiding prolonged sitting can reduce pressure on the scrotum. In daily life, you can take steps to ensure scrotal health, such as choosing breathable underwear and avoiding activities that may increase scrotal pressure, such as prolonged cycling.

[Life Tips:]
1. Choose loose-fitting, breathable underwear and avoid wearing tight pants for extended periods.
2. Regularly examine the scrotum area, paying attention to any abnormal swelling or pain.
3. Maintain a healthy weight, avoid prolonged sitting, and increase the time spent standing and walking.
4. In hot weather, pay attention to heat dissipation in the scrotum area to avoid overheating.