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Bisphenol A (short as BPA) is usually used for thermochromic products, and in recent years, it begins to be applied in functional textile with thermochromic performance. As a kind of environmental hormone, BPA is generally considered as chemicals with risks for its embryo toxicity and teratogenicity, which can result in cancer. In this study, thermochromic textiles in current market are collected for samples as many as 12 pieces. Experiments have been done for the determination of BPA in these samples to work out the health risks of thermochromic textiles. The results request laws or regulations on content of BPA in functional textile, because the HPLC-FLD/DAD test results showed detection of BPA in all samples, and some of which even have a high BPA content which will lead high risk to consumers and environment