After waking up in the morning, pain in the heel when walking: 1, most of them are caused by plantar fasciitis, because in the process of walking, running and other lower limb activities, most of the weight is concentrated in the heel, and the tendons and fascia of the heel are repeatedly stretched or squeezed, which can lead to inflammation. 2, sudden external force leads to local soft tissue damage around the heel, which can lead to bleeding and swelling of the heel. Stimulate the surrounding soft tissues to inflammatory reaction, and then appear the symptoms of pain after waking up in the morning. During the daytime, walking or some daily activities make the fascia move and increase the local blood circulation, thus reducing the degree of inflammation to some extent. At night, when the fascia stops moving, the inflammation increases and the heel pain becomes worse in the morning.