"What should a university girl who has memorized the Quran do, having repented from fornication, yet still having thoughts of returning to it, and asking about the permissibility of undergoing a hymenoplasty for marriage after Allah has concealed her sin? "

She has erred by committing Zina (unlawful sexual intercourse), and she must repent, increase her seeking of forgiveness, and perform righteous deeds. The operation of hymen restoration is not permissible due to the prohibitions it entails, such as exposing the ‘awrah (private parts), encouraging Zina, and deceiving the husband. She should conceal herself and not mention the sins she used to commit. If the husband asks her about the loss of virginity, she may allude to the fact that it can disappear due to other reasons besides intercourse, and she should be cautious about revealing what Allah has concealed.