The sole may seem soft and comfy, but your foot ends up over-pronating (rolling inward), especially as there's usually no added support for the arches of your feet. This is likely to cause pain in the heels, arches, ball of the foot, and toes. Having said that there are some excellent flip flops out there such as Fit Flops and Flexy Feet from Foot Petals both of which will provide you with the necessary arch support and shock absorption to keep your feet pain free.

As flip flops usually only have a little v-shaped straps across your toes, there's not a lot holding the shoes to your feet. When you walk, you end up gripping your toes together to keep your flops on, making the muscles and tendons in your feet do all the work. This simple action may lead to tendonitis.

If you generally wear shoes that have a raised or high heel, flat shoes can end up stretching the calf muscles.

Sprained ankles in the Summer are common because of flip-flop use.

The constant pounding on the backs of your feet not only hardens the skin, but as your feet are exposed to air, skin can, and does, dry out. If the skin gets too dry, the callused skin cracks and bleeds, which is often extremely painful.

Wearing flip-flops, tends to alter your gait, with you ending up taking shorter steps, which may lead to pain in some other areas of your body.

When you wear flip-flops, one definitely ends up with more cuts, splinters and bruised toes.