Haglunds deformity is a prominence at posterosuperior portion of the calcaneus. Extrinsic irritation on this prominence can give rise to retrocalcaneal bursitis or Achilles tendinitis. Partial resection of the posterosuperior aspect of the calcaneus was performed on 7 heels with Haglunds disease. All patients were reviewed both by radiographic examination and by questionnaire after an average 14.5 months. All but one patient showed an excellent result in a view point of pain relief. The average passive dorsiflexion angle of the ankle was improved from 5 to 25 degree, postoperatively. There was no complication such as recurrence, wound problem or paresthesia.