There are many reasons for heel soreness and swelling, mainly due to overwork, high pressure on the heel bone and heel bone spurs. 1. Overwork: When standing for a long time in shoes with hard soles, the heel will become sore and swollen due to excessive pressure. 2. High pressure of heel bone: When there is old fracture or long-term inflammation in the heel bone, the pressure inside the heel bone will increase, and then the heel will become sore and swollen. 3. Heel bone spurs: when the heel area of the patient is stimulated by external force for a long time, resulting in bone proliferation, regression, and the gradual formation of bone spurs, which stimulate the peripheral nerves during the activities, the patient’s heel will experience pain and soreness. There may also be other causes of heel soreness, such as kidney disease, etc. It is recommended to consult a doctor in time, improve the relevant examination, and clarify the cause of the disease for targeted treatment and therapy.