Yes, and not only for your feet. Walking on hard concrete floors for long periods can lead to everything from bunions and ingrown toenails to shin splints, lumbar strain, and Achilles tendonitis. It may begin with a little soreness in your foot then develop into an inflammation that spreads along the inner edge of your legs all the way up to your lower back. In the end, all your muscles will feel stiff, plus you will have less energy for your daily activities. Not to mention the stress all this can cause you.