How often should you change your pads? {Your Opinion}

Ok, so I would like to ask all of you a question today. During the period days, how often do you change your pads? 

The reason I am asking is from two concerns - hygiene and blood flow. Now, some people suffer from excessive blood flow for which they have to change the pads very frequently. But, what about the hygiene aspect? Well, you are getting so many awesome products in the market which give complete protection lasting up to a day also. BUT, even if your blood flow is not heavy, the dry blood in the pad acts as a stimulant for bacterial growth and there is a certain type of bacteria which causes vaginal infection so you should change the pads once in every 4-6 hours so as to avoid the infection.

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