Let's also talk about the price of leeches of traditional Chinese medicine.

Leech wild distribution in lakes and rivers, mainly produced in Jiangsu Yancheng, Shandong Weishan Lake and Hubei, Henan, Jilin, Heilongjiang and other places. Since the eighties and nineties of the last century, with economic development, serious water pollution, damage to the living environment of leeches and crisis of resources, the market of leeches has risen step by step. In the past few years, environmental control has been strengthened, water quality has been improved, and leech resources have been restored to a certain extent.

Leech has the effects of treating stroke, hypertension, clearing blood stasis, amenorrhea, falling injury, etc., and has obvious effect in the prevention and treatment of cardiovascular and cerebrovascular diseases. People's living conditions are constantly improving, cardiovascular and cerebrovascular diseases and other diseases are becoming more and more frequent, and the sales of leeches are also increasing.

At present, leeches are running to a medium-to-high price. Most of the goods pressed in previous years have been sold, a considerable number of them have been sold at capital preservation, and a small number are waiting for the arrival of a higher price. This product has no dealer and runs smoothly. The risk of autumn goods before the new production is not great for the time being. But with the passage of time, the increase or decrease of demand, the market will also change.

Over the years, the backlog of leeches gradually digested. The leech market recovered again after many years of downturn, and the price went up year by year. Especially in 2011, the price of leeches soared, which greatly aroused people's enthusiasm to catch, big and small, and over-capture intensified again. Some newly developed producing areas show signs of resource depletion in just two or three years. It soared to more than 70 yuan last spring. After the new birth last spring, the catch in each production area has not stopped, and the output is slightly higher than that of last year.

The resources of leeches can not be controlled, and the crisis aggravates. Wild resources are decreasing day by day, and housekeeping is the trend of the times. Some media practitioners charge public relations fees to exaggerate the market prospects and economic benefits of leech farming in individual bases, giving leeches the opportunity to fire authors and induce people to invest blindly.

Judging from the new situation of leech production in various producing areas, the increase in output last year is only temporary. Due to the reduction of wild resources of leeches, the decline in annual production today, tomorrow and after will be highlighted. The decline in the leech market is also temporary.

There are several unfavorable factors in leech production: first, the sporadic distribution of resources, second, once the fishing resources recover slowly, and third, the value of leeches outside the traditional producing areas is not recognized by people, and the producing area is relatively narrow. Traditional producing areas include Hebei Baiyangdian, Jiangsu Hongze Lake, Jiangxi Jiujiang, Anhui, Zhejiang, Hubei and other places. In recent years, northeast small leech producing areas have been opened up. The situation of each producing area has its similarities, that is, it is OK not to exploit the amount of resources, and once the fishing resources are caught, they will soon be exhausted, which is directly related to the poor reproductive ability and slow growth of leeches. This is the case in the new and old producing areas in the north and south of the Yangtze River, and the same is true in the northeast small leech producing areas developed in recent years, and the resources have been exhausted in only three to five years.

The development and utilization of leeches seems to have formed a strange circle: when the output goes down, the price goes up, and as soon as the price goes up, the producing area will try its best to make the output even less. With the current production and marketing situation, this strange circle is becoming more and more intense, and it is only natural that prices will continue to rise.