Impact of sequential traditional Chinese medicine intervention on pregnancy outcomes of intrauterine insemination: A retrospective cohort study.

OBJECTIVE

Traditional Chinese medicine (TCM) has been widely used in assisted reproduction, but the outcomes have been inconsistent. This study evaluated the impact of sequential TCM treatment on pregnancy outcomes among patients undergoing intrauterine insemination (IUI).

METHODS

This retrospective cohort study included female patients who underwent IUI with their husband's sperm at the Reproductive Center of Affiliated Hospital of Shaanxi University of Chinese Medicine between November 2019 and June 2022. Patients were divided into sequential TCM (TCM was administered for at least 14 consecutive days during the treatment cycle) and non-sequential TCM (TCM was administered for fewer than 14 days or not administered) groups according to the duration of TCM administration. The primary outcomes were clinical pregnancy rate and live birth rate.

RESULTS

A total of 396 cycles were analyzed, with 160 cycles undergoing sequential TCM treatment. The sequential TCM group exhibited a higher clinical pregnancy rate (26.3% vs 14.0%, P = 0.002) and live birth rate (20.0% vs 10.2%, P = 0.006) compared to the non-sequential TCM group. After adjusting for endometrial pattern and dominant follicle diameter, the odds ratios for pregnancy and live birth in the sequential TCM group were 2.289 (95% confidence interval [1.335, 3.923], P = 0.003) and 2.241 (95% confidence interval [1.226, 4.096], P = 0.009), respectively.

CONCLUSION

In this retrospective cohort, sequential TCM treatment was associated with higher clinical pregnancy and live birth rates in patients undergoing IUI treatment. Please cite this article as: Li N, Yan XL, Wang LJ, Zhang H, Chen M, Bai J, Ji N, Zhang YD, Pang Y, Wang HJ. Impact of sequential traditional Chinese medicine intervention on pregnancy outcomes of intrauterine insemination: A retrospective cohort study. J Integr Med. 2026; 24(3):387-393.