Nhung, 29, experienced four years of secondary infertility caused by hyperthyroidism, undergoing endocrine treatment combined with in vitro fertilization to conceive.

Despite normal reproductive health check-ups, Tuyet, 33, remained childless after two years of marriage.

Huyen, 30, discovered thyroid cancer during infertility screening and underwent surgery and stabilization treatment before in vitro fertilization.

Quang, 31, successfully conceived a child through in-vitro fertilization after doctors performed microsurgery to retrieve sperm and then used a sperm activation technique to filter viable samples.