Clinical study on the treatment of male infertility with Wuwei Fuzheng Yijing decoction based on microplastics: Study protocol for a randomized controlled trial.

Background: Environmental pollution and male infertility have become global public health problems. The presence of microplastics (MPs) has been detected in the human body, and it has also been demonstrated that MPs can cause damage to the reproductive system. Wuwei Fuzheng Yijing Decoction (WWFZYJ) is effective in treating male infertility.