Is ghusl necessary every time one masturbates?

I have a really bad masturbation problem that causes me to do it mutinies times a day, do I still have to make ghusl every time?

Sorry about your condition. Ghusl is necessary if you want to pray after masturbating (if you are a man). You cannot pray until you make ghusl.

For help on avoiding masturbation, please see the articles on this page: Islam and Masturbation