what causes the bottom of foot to hurt
The most common cause of heel pain is plantar fasciitis, inflammation where this long ligament attaches to the heel bone. The pain may be sharpest when you first wake up and put pressure on the foot. Arthritis, excessive exercise, and poorly fitting shoes also can cause heel pain, as can tendonitis. Less common causes include a bone spur on the bottom of the heel, a bone infection, tumor, or fracture.
You may have reduced sensation in your feet from diabetes, making it hard to realize that your foot is injured. Also, blood flow in your feet is impaired in diabetes, so infections can be harder to fight off. Osteoarthritis, gout, and rheumatoid arthritis are among the conditions that can cause severe foot pain.