Polygonum multiflorum Thunb is a common Chinese herbal medicine, which has been developed into the main component of many Chinese patent medicines and health products. Although Polygonum multiflorum Thunb is a plant carcinogen, it is not a first-class carcinogen. According to the investigation of the carcinogen evaluation center (IARC) of the World Health Organization (WHO), Polygonum multiflorum Thunb belongs to plant carcinogen, but it is classified as the third carcinogen, that is, there is no sufficient evidence to prove that it may cause cancer to human beings. Compared with tobacco, alcohol and some air pollutants, Polygonum multiflorum Thunb. has much lower cancer risk.
Although Polygonum multiflorum Thunb is a plant carcinogen, its potential carcinogenic risk is relatively low and it is safe under reasonable use. It is suggested that people use Polygonum multiflorum Thunb reasonably according to the actual situation and doctor's advice to prevent unnecessary risks.
Brief introduction of Polygonum multiflorum Thunb:
Polygonum multiflorum Thunb. ) Nakai), a perennial twining vine of Polygonaceae, with elliptic or rectangular leaves; The base is heart-shaped or nearly heart-shaped, both sides are rough, and the edge is entire; Conical inflorescence, triangular ovate bracts, slender pedicels, elliptic perianth segments, wider below filaments; The style is extremely short; The fruit is ovoid, dark brown and shiny, and is wrapped by perianth.
Polygonum multiflorum Thunb. originated in China, and now it is mostly distributed in southern Shaanxi, southern Gansu, eastern China and other areas, growing at an altitude of 200-3000m, more than valley shrubs, hillsides and groves. The main propagation mode of Polygonum multiflorum Thunb is seed propagation, and it can also be cultivated by cutting propagation and layering propagation. The cultivation history of Polygonum multiflorum can be traced back to the Ming Dynasty, when Deqing County was called "the hometown of Polygonum multiflorum".
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