What is the solution to the problem of not having children, and is marrying another woman an injustice to the wife who underwent a fallopian tube removal operation without her consent?

The husband wronged his wife by committing two grave mistakes: The first is signing for a surgical procedure for her without her consent, for he does not have the right to dispose of her body without her permission. The second is performing a sterilization procedure on her, which is not permissible except in rare cases, and abortion is not one of them. He must repent and seek forgiveness from his wife. As for his marriage to a second wife, this is not an injustice to her, and it is permissible for him, provided he deals justly between his wives.