If a patient has a swollen heel, it may be due to the presence of acute trauma, soft tissue-related inflammation, blood return obstruction and other etiologies, as follows: First, acute trauma: some patients may experience swelling secondary to acute trauma to the heel bone, such as when a patient jumps from a height, which may result in a compression fracture of the heel bone, after which the patient may experience very severe swelling at the heel. Second, soft tissue-related inflammation: Some patients may experience swelling due to soft tissue-related inflammation here, for example, when patients develop heel pad inflammation or plantar tenosynovitis, the inflammatory reaction of the local soft tissue will lead to significant swelling of the heel. Third, blood return obstruction: some patients may have swelling due to blood return obstruction in the foot, such as when the patient had serious soft tissue blunt contusions in the past, which may lead to poor blood return due to the destruction of blood vessels, the swelling of the heel often occurs easily.