Plantar fasciitis causes pain in the bottom of the heel. The plantar fascia is a thin, web-like ligament that connects your heel to the front of your foot. It supports the arch of your foot and helps you walk. Plantar fasciitis is one of the most common orthopedic complaints.
Bursitis is the inflammation of one or more bursae (small sacs) of synovial fluid in the body. They are lined with a synovial membrane that secretes a lubricating synovial fluid. There are more than 150 bursae in the human body. The bursae rest at the points where internal functionaries, such as muscles and tendons, slide across bone.
Bursitis facts. A bursa is a fluid-filled sac that cushions an area of friction between tissues, such as tendon and bone. Bursae reduce friction between moving parts of the body, such as around the joints of the shoulder, elbow, hip, knee, and adjacent to the Achilles tendon in the heel.