This is not a pro-Israeli or pro-Palestinian post, this is a pro-humanitarian post. I am not taking a party and what I write here is just a practical concern on people, whoever they are. In the current situation, medical facilities in Gaza cannot deliver the services that people who are ill or injured require. Israel is unlikely to allow a flow of medical supplies since these could potentially be used by Hamas (I am not here to judge how good this argument is).
There is however no reason why hospital ships could not be used to care for children, pregnant women, old people and others that require special attention. Even men and women in general.