This condition includes several forms: autosomal dominant hypophosphatemic rickets (ADHR) caused by FGF23 mutations, autosomal recessive hypophosphatemic rickets (ARHR) caused by DMP1 mutations, and X‐linked hypophosphatemic rickets (XLH) caused by PHEX mutations [274, 275, 276, 277]. The gene discussed is FGF23; the disease is autosomal recessive hypophosphatemic rickets.