Having pores that are too big can be bad for your skin since a lot of dirt and bacteria can be stuck in there causing you to develop things like acne. So what can you do about it? Why does it happen? Much of it is just due to genes but another cause is due to not washing your face. As gunk builds up in your pores, it will tend to expand it. That’s why when you take out things like blackheads that have been there for ages, it leaves an opening. Pore minimizing can be something that many people will try to do. There are products out there that can help reduce the size of the pores, but for the most part, it’s only temporary.