Frozen sperm just as effective as fresh for insemination treatments

Patients having intrauterine insemination for fertility treatment can be reassured that the use of cryopreserved sperm instead of fresh is not associated with inferior outcomes. The largest study of its kind, whose results are presented today at the 38th annual meeting of ESHRE, found no difference in pregnancy rates between cycles using cryopreserved or fresh sperm samples. The results of the study, presented today by Dr. Panagiotis Cherouveim from Massachusetts General Hospital and Harvard Medical School, U.S., were based on an analysis of 5335 intrauterine insemination cycles performed at his center between 2004 and 2021. "Patients undergoing IUI should be counseled about the non-inferiority of frozen sperm," said Dr. Cherouveim.