What is making my cat scream like this?

Have them check him for a urinary infection. My cat did this and he had problems peeing and he cried and howled all the time. See if he looks like he is having contractions, it looks like he may be constipated, this was my mistake. I umed he was constipated.Crystals had built up and blocked his way of peeing. I am sorry to say the outcome after surgery was not good, it was too late. Please get this checked ASAP as if you can catch it in time everything will be fine.