1. Their Abs

Women aren't the only ones who are pressured to look a certain way. Even though there are plenty of chunky male celebrities, that does't mean that boys are comfortable with their flab. After all, girls swoon over guys like Chris Hemsworth and Brad Pitt, who have sculpted chests. That's why most men are insecure about their own abs.

2. Their Hair

Some men lose all of their hair by the time they're in their 20s. Even though there are plenty of guys who walk around with bald heads, it doesn't mean that your man wants to be one of them. That's why he might always have a hat on his head when he leaves the house.

3. Their Athleticism

Think about the boys you've encountered in gym class. Aren't they all so competitive? That's because they feel like they need to prove themselves by being more athletic than the other kids in the class. Even if a man isn't into sports, he might try to be the best football player in Madden NFL on his Xbox. He's just trying to prove himself in some way.

4. Their Manliness

Some men think that it's their job to be masculine. That might mean that he thinks he should know how to fix a car, how to change a lightbulb, or how to unhook a bra. If he has trouble with any of those things, then he's going to feel self-conscious about his manliness.

5. The Amount of Girls They Get

Even if a man isn't a player, he'll still be happy to hear that multiple girls are interested in him. After all, most men believe that the amount of women they can get has something to do with how successful they are as a person. It sounds silly, but honestly, we act the same way. Don't you smile a little wider when you find out a stranger has a crush on you?

6. Their Size below the Belt

Women are self-conscious about their breast size, but men are self-conscious about their penis size. They think that the size of it impacts how good they are in the bedroom, and how capable they are of pleasing a lady. Of course, that's not exactly the truth, but most men don't realize that.

7. Their Material Items

It's hard not to be materialistic in this day and age. That's why a lot of men think that their worth can be proven by the size of their car or by the price of their phone. When they're older, then they might also become insecure about the size of their house and the college that their kids attend. They want the very best of everything.

It's impossible to be confident about every aspect of yourself. It doesn't matter if you're a male or a female, because everyone is insecure about something. What other things have you realized most men are self-conscious about?