The plantar fascia is a band of connective tissue located deep in the fatty layer of the foot, straddling the medial process of the plantar aspect of the foot and the phalanges, and functions to assist in supporting the medial longitudinal arch of the plantar aspect of the foot. Chronic pain often occurs in the plantar fascia. Typically, the patient presents with pain as early as the first step after rising in the morning or when walking after a sedentary period. Pain episodes are insidious, but can also occur after an injury. The diagnosis is made by tapping on the origin of the plantar fascia to elicit pain, which is aggravated by passive dorsiflexion. Treatment of plantar fasciitis includes physical therapy, non-hormonal and hormonal anti-inflammatory medications. Corticosteroid injections are generally used when physiotherapy and non-hormonal medications are not effective. Hormone injections are effective in relieving pain, but may cause plantar fascia tears and atrophy of the plantar fat pad. The patient lies on his or her side, with the affected side underneath. Percuss the soft tissues on the medial side of the foot distal to the heel bone to find the point of maximum pressure and pain or swelling for localization, use a 25G needle, pierce the skin vertically at the localization point, the needle should exceed the plantar midline, and then slowly and evenly inject the drug into the middle 1/3 of the right and left plantar diameter while retracting the needle, avoid injecting the drug into the plantar fat pad to avoid causing atrophy of the plantar fat pad. Patients should be observed supine for 30 min after injection to see if there are any post-injection adverse reactions. Patients should not make strenuous exercise within 48 h. Patients should be reminded that symptoms may also be aggravated during this period due to hormonal reactions, and that treatment with ice or non-hormonal drugs such as ibuprofen and naproxen may reduce discomfort. follow-up examination within 3 weeks.