1. Twelve cases of hydatid disease of bone seen in Kuwait over the last ten years are reported. Ten of the twelve patients were Bedouins.

2. Seven cases were followed up and the results of treatment are discussed.

3. Curettage, formalin swabbing and bone grafts were used as the treatment of choice.

4. There may be a place for a conservative approach in some cases ; one such case reported here has been followed up for ten years.

5. The problem of prevention, especially in a Bedouin area, is briefly discussed.