Acute inflammation of the plantar fascia can result in a burning sensation on the bottom of the foot with redness and swelling. Plantar fasciitis is a painful condition of the bottom of the foot, located at the heel of the foot, and is a relatively common form of foot pain. The most common symptom is pain and discomfort in the heel. The pressure point is often on the bottom of the foot near the heel, and sometimes the pressure pain is more intense and persistent. The pain is obvious when waking up in the morning, intensifies when walking excessively, and is even felt when standing and resting in severe cases. Plantar fasciitis is a chronic injury caused by exercise. Overtraining can also lead to heel pain, sometimes radiating to the front of the foot, and this condition can affect adults of all ages. So, what tests should be done when a patient has symptoms of burning sensation on the bottom of the foot? The following is a brief introduction: 1. X-ray examination can show soft tissue calcification in the heel or bone superfluous in the front of the heel bone, that is, the heel bone spur. The presence or absence of heel spurs is not helpful in the diagnosis of plantar fasciitis. 2.Bone scan May show increased calcium uptake in the heel bone. 3.Magnetic resonance may show thickening of the plantar tendon membrane.