This systematic review aimed to assess the effectiveness of acupuncture in improving endometrial receptivity (ER) based on randomized controlled trials (RCTs). The review included RCTs of infertile women with low ER and excluded other causes of infertility or non-RCTs. The researchers conducted an extensive search through various databases up to August 2018 without language restrictions. After analyzing the collected data, they found evidence indicating that acupuncture may enhance pregnancy rate, embryo transfer rate, trilinear endometrium, endometrial thickness, and decrease resistive index, pulse index, and peak systolic velocity/end-diastolic blood velocity when compared with medication, sham acupuncture, or physiotherapy. However, the overall level of evidence was mostly very low or low. Despite the statistically significant results, the authors emphasize the need for more large-scale, long-term RCTs with robust methodologies to further validate the efficacy and safety of acupuncture for women with low ER