Why do we wash bath towels? Aren't we clean when we use them?  

They get bacterias from the air and so they need washing

ur dirt gets on tem
they smell

That's a good question, and correct. I don't know what to say. Maybe, like anything else, it just has to be cleaned.

the reason for washing bath towel is that someone in the world will bath and be clean enough.so wash we use bath towel we clean off the dirty

Well for one thing, when we dry off using a towel, we are placing a ton of skin cells, oils, and hairs on to those towels. After a few uses, the towels are pretty much covered in our personal DNA. As a result, it makes sense to wash them, and have a clean fresh towel to use.

but the wet and air will combine and put germs and bacteria on the towels. Which is why they need regular washing.

They can still get dirty from being put on the floor while we change or something and they can still attract bacteria and germs from just hanging on the rail.

Funny question. I don't know the answer but I know that is we have to wash. By the way I am rating with a + because I like the discussion and the question. Sometime we do things but we don't think about.

I think for me, we need to wash the bath towel because of course aside from the germs or dirt gathered when we dry ourselves its also the case of towels sometimes dont dry properly and causing a smell to it. so would be a lot refreshing to use a new/newly washed towels from time to time.

we use them to keep our self clean by that time the dirt from our bod is in the bath towel so that why there is a need to wash them