Cloth, after wash problem? Why some of the bottom part of my shirt widened after...

Why some of the bottom part of my shirt widened after wash? How to prevent it?
Answers:    Has the shirt been stretched in some bearing? Perhaps you stretched out the fabric unknowingly, or it could have be twisted in the washing device. I have had this evolve occasionally when I attempted to overcrowd the machine. Garments sometimes become twisted around another in the washer or dryer. If you hung it to dry, if you hung it upside down near pins to dry, this could have stretched it. If this is the case, subsequent time put it on a hanger to dry.

Try rewashing and re-drying the shirt to see if it looks any better. If not, return it to the store where it was purchased, and bring up to date them you want to exchange it, or want a refund for a defective shirt.
This shirts fabric talent does seem to be of low quality this could be the judgment why it stretched after washing, wash merely in cool water prevent stretching Good Luck !