This disease is an inflammation of a thick band of tissue that connects the heel bone to the toes. Symptoms include stabbing pain near the heel, the origin of the plantar tendon plate or aponeurosis plantaris. Starting pain/complaints in the morning or after periods of rest are common in this ailment. For example, when you get up in the morning from bed or from a chair in which you have sat for a while. The foot then feels stiff and there is a sharp, stabbing pain under the foot, in the centre of the heel. The stabbing pain turns into a dull pain when walking. Sometimes the pain radiates to the inside or outside of the foot. Due to the location, it is often confused with heel spur.