Subcutaneous fat necrosis of the newborn (SCFN) is a panniculitis that develops in fatty areas during the first weeks of life after foetal distress or perinatal complications. Prognosis is generally good with complete regression, but it can be complicated by metabolic abnormalities like hypoglycemia, hypertriglyceridemia, thrombocytopenia, and also potentially life-threatening hypercalcemia. We report a case of severe hypercalcemia complicating SCFN in a newborn who was treated with hyperhydration, furosemide, prednisone, and pamidronate.