Is it natural for men?

I really dont believe it is gender based to men. I know some of both sexes that are just slobs. Unless you actually share a room/cubbie I wouldnt say anything. If it is something that is in the same room you can try but it dont mean it will change.

I know men that are organized and men that aren't. I can say the same for women. Both exist.

Hey, we're men, man! Yeah! We like to eat chili and stain our shirts! We wear our underwear three weeks in a row! Who says we need to shave! We throw our things all over our desks! Hoo-rah!!! Kidding. But, I think if it is bothering you, you should ask him to tidy up a bit. Don't be rude, but make sure he gets your message. Just mention that it is a little distracting and keeps you from completing your work properly. But if there is a wall separating ya'll, with cubicles for example, just leave it alone. Boys will be boys!

Don't stress yourself. It's so natural men to be this insensitive. It's just the way they are. Rare do you find men who is considerate about people around them and their environment. You ca remind him, but yes, he will just go back to his old ways. You can make sure YOUR things are in perfect order but don't expect him to be like you.. you will just feel more frustrated.

Some men can be organized while some work well even when their working environment is chaotic. I don't how they could pull it off but, they could and even more so if its their stuff..

i had a chance few months back to visit my husband's office and saw his cube. I literally fainted. It was a very big mess and he never bothers to clean it up (even in house) i believe. Its quite common for men to be like that.