What is considered 'heavy bleeding' during a menstrual period?

if you put in a "super" sized tampon and it needs to be replaced in 1/2 hour that's heavy

If you need to replace your tampon after every half an hour then it is a heavy flow.You need to meet the doctor.If you have staining issues you need to wear a good period panty that can help prevent staining.I use adira period panty and i must say that its perfect for those 5 days.Cotton and comfy.And its always recommended to wear a pad if you have a heavy flow.It is always better for proper flow of blood clots.