1. An account of fifty-four patients suffering from ainhum is presented, and the clinical and pathological findings are discussed.

2. Etiology is considered, and a plan of treatment proposed.

3. Ainhum in Ibadan is a disease of all ages and both sexes.

4. Most patients have considerable pain.

5. It is due to a non-inflammatory change in the basal layer of the epidermis.

6. Surgical treatment has gratifying results.