Sperm need a suitable greenhouse, and that greenhouse is the scrotum. The scrotum is able to change its shape in response to changes in temperature. When the external temperature is high, the scrotum will stretch to increase its heat dissipation area and lower the internal temperature, while when the temperature is low, the scrotum will contract to reduce the heat dissipation area on the one hand, and at the same time keep the testicles close to the abdominal cavity to obtain a certain amount of warmth from there. The reason for the granularity of the sperm is that it contains coagulation enzymes within it, which is a normal physiological phenomenon, and this has a very good protective effect on the sperm, generally such jelly-like small crystals will disappear in about 30 minutes, and this process is the result of liquefaction. Adult men must be careful not to abstain from sex for long periods of time and to maintain their proper vitality. If the granular sperm is not liquefied or is poorly liquefied, such sperm mobility will be greatly affected, thus reducing the chances of conception, usually eat more vitamin-rich vegetables and fruits, to eat some soy products, and also eat some animal offal, and eggs, meat, etc. More exercise to enhance physical fitness, improve immunity and resistance. If a long time is granular, then it may be because of their own body stunted or the result of inflammation, must pay attention to the appearance of inflammation, there are timely to eat some anti-inflammatory drugs to reduce the inflammation in the body.