Heel pain is generally not a precursor to serious illness, but may be a clinical manifestation of Achilles tendonitis, plantar fasciitis, subtalar bone spurs, lumbar disc herniation and other diseases. 1. Achilles tendonitis: Excessive exercise tends to overstretch the Achilles tendon, which leads to injury at the junction of the heel bone and the Achilles tendon, resulting in aseptic inflammation and causing heel pain. 2. Plantar Fasciitis: Long time walking or cold stimulation will lead to excessive pressure on the plantar fascia, which will affect the heel and the surrounding tissues, resulting in pain, muscle spasm and other symptoms. 3. Bone spurs under the heel bone: when the foot undergoes greater pressure, it will lead to bone spurs in the heel bone area, thus causing heel pain. 4. Lumbar disc herniation: when the nucleus pulposus of the lumbar disc herniates, it may compress the surrounding nerve roots, thus causing abnormal sensation in the innervated area, which may lead to the phenomenon of heel pain. There are many reasons for heel pain, if it is difficult to relieve, it is recommended to go to the hospital in a timely manner, a clear diagnosis and follow the doctor’s instructions for treatment.