Causes of black nails .. Addison's disease. Cushing's disease. The pigmented birthmark. Melanoma. Sodomunas

Black nails

Causation:
Addison's disease.
- Cushing's disease.
- Pigmented birthmark.
- melanoma tumors.
Deep radiotherapy.
- Special infections due to Sodomunas.

Vertical black bands

Causes:
- Adrenalectomy.
- The link.