In addition to blisters and anti-type VII collagen antibodies (anti-NC1 and anti-NC2), patients with bullous lupus have similar lab findings to those with SLE, including ANA, anti-dsDNA antibodies, anti-Smith antibodies, anemia, leukopenia, thrombocytopenia, and hypocomplementemia [7]. This evidence concerns the gene COL18A1 and anemia (phenotype).