The way I see it is guys need to get off 2-3 times a day, not doing so can cause short-tempers, irritability, etc... Many women will feel pain for having sex too often, and most usually can't go more than ~5 nights a week, often less, and rarely more than once a day on a regular basis; other problems can occur too such as the occassional UT infection, etc... Masturbation is a part of life for a male, it's cheaper and far safer than prostitutes and probably won't cause any problems in your marriage. A bit of porn can help as a visual aid, and can help enhance sex lives as well, because if one is in the mood and the other is not, watching other people have sex will always get anyone in the mood.
Can it be problematic? Well....
I describe myself as a little dose of toxic masculinity.
