How often do you replace your toothbrush?

I change it about every 3 months atleast but if my tooth brush looks gross before then then I'll buy a new one early. Or if I have a really bad cold then ill try it out after I am well again.

I change my toothbursh every 3 months. The colour indicator in the brush helps me to do so. What about you?

A toothbrush should be changed when it starts to show wear. I like to soak mine in hydrogen peroxide once a week to kill any germs that are growing on it. I never leave mine setting out on the counter since everytime the toilet is flushed there are droplets released into the air and they settle on everything. I keep my toothbrush in the drawer or in my bedroom depending on where I am at.

Hi For me the tooth brush will last only for a month. Hence I will replace this once in a month.

According to the warning of the toothbrush,it's better to change a toothbrush once a month.I often choose a toothbrush which is not so cheap and not so expensive,it costs me two yuan or three yuan.