A recent post from Missy Rogers has been quite an eye-opener to those who have been struggling to fit into their normal size and have to move up a size.

The post shows the image above. The two shorts appear to be the same waist size, but they are in fact two different sizes.

"The black is a size four. The maroon is a size 10."

Rogers questioned how much weight she had gained after attempting to put on the new size four.

So the true question is, how often do these numbers change?

"The measurements that added up to a size 12 in 1958 would get redefined to a size six by 2011," said the Washington Post.

On top of the sizing changes, every clothing line has different sizing charts as well. Meaning, in one store you can be a size six and another you can be a 10.

The problem with changing sizes so drastically is that we often blame ourselves rather than the manufacturer who created their own standards of sizing.

Rogers reflects on her time in the dressing room: "Having to go up to a size 10 made me question just how much weight I gained."

But Rogers knew better and took her new shorts home and compared them to her size four shorts she purchased two years ago. She revealed that the waist sizes appeared to be the same.

Rogers makes a good point that the message being sent to young girls is the wrong one.

"They have been convinced that the smaller size you are, the more beautiful you are. This is not the case, and I think it's important to show that clothing size should not define your beauty. "

Rogers' viral post shows that clothing sizes aren't regulated correctly, and we should not define our health or beauty by the numbered size our clothes are.