The recipe of pig blood spinach soup can relieve constipation. It is easy to cause constipation in spring. This is because people's pores are closed in cold season, and the yang of the human body is trapped in the body. In addition, people are used to tonic in winter, and their diet is mostly barbecue and rinse, which leads to heat accumulation in the stomach. In the spring, the yang will flow out, and the accumulated heat will pour into the anus and intestines, which is prone to constipation. If you squat for a long time, it will lead to hemorrhoids bleeding, redness and swelling, and unbearable pain. Therefore, there is a saying that "money is hard to buy spring diarrhea", which means that spring should moisten the bowels and relax the bowels, so that it is better to keep the stool slightly diarrhea. Eating pig blood spinach soup often can relieve constipation in spring. The taste of pig blood is salty, which can soften the dryness in the large intestine and make it easy to be excreted. Spinach nourishes blood to stop bleeding, clear heat and moisten dryness; Pig's blood and spinach are used together, which is beneficial to both sides. It is most suitable for people with physical weakness and constipation. Therefore, the pig blood spinach soup has the effects of relaxing bowels, clearing away heat, moistening dryness and stopping bleeding. The practice of pig blood spinach soup is: use 5 grams of pig blood and cut it into blocks (or sheets); 5 grams of fresh spinach, washed and cut off, add appropriate amount of water to cook soup to taste before serving, or as an accompaniment to meals. Constipation can be relieved once a day or every other day by taking it for 2-3 times.