To ensure that an individual's eggs or sperm are only used once, hospitals must destroy what is left over after successful delivery of a child conceived of that individual's donation.
為確保「一人一生只能捐一次」，捐贈之後一旦有活產（寶寶順利出生），醫院的生殖中心就必須銷毀剩餘的精卵。