How do you know if you have big boobs?

a lot of people say walk towards a wall and see what touches first, your nose or your chest. I'm just kidding I don't think that's a real test.

You look at others the same age and weight as you. If you're about the same, you're average. If you're smaller, ...

38C for being 16 is pretty big, but not huge. I'm 32DD and 26 which is really big.

I'm a 34DD abd it sucks they are huge!

A C cup is fairly big, but the 38 measurement means it's from carrying some extra weight. Unless you're like 6'2" or something, your number should be lower than that.

It depends on your body frame. If you're a 38C and you a tiny framed person then that would be pretty big. but if your chubby then it will probably look medium or small.

38C, that means you got a lot of extra weight on you all over your body. your boobs are average. I'm a 34DD and I know my boobs are too big.

AA-A = small
B-C = medium/average
D-DD = big
E+ = huge

but someone who's a 38C is going to look like they have bigger boobs than someone who's a 32C because they're a larger person.

I'd say noticeable cleavage = medium-big, little to no cleavage = small

Thats big but since its 38 its the overweight big, just being honest