A woman must have a guardian. In other words, this person is called mahram. He is an accompanying woman and is free to make absolutely any decisions for her. A mahram may be a father, brother or even a son if there are no other men in the family. Each step of the woman must be approved by the guardian and she does not have the right to take it without his consent. The list of such issues includes any trips abroad, marriage with one or another man, and even permission for medical services. Refuse the guardian, even in the case of improper treatment, a woman has no right.