The researchers studied how different temperatures of freezing and warming solutions affect the survival and maturation of frozen-thawed human immature eggs. They tested various temperature combinations on eggs at different developmental stages and found that using room temperature solutions for both freezing and warming resulted in the best outcomes, with higher survival rates and normal egg development. In contrast, using solutions at 37℃ led to lower survival rates and fewer eggs reaching maturity. This study shows that the right temperatures during the freezing process can improve the success of preserving immature human eggs.