Sclera is of variable hue. No hearing loss Half of the cases have in-utero fractures. The remaining half of cases have fractures in neonatal period. Dentinogenesis imperfecta is present. In utero fractures are rare.
Fractures begin in infancy.
Type I is autosomal dominant. Type II is autosomal dominant with new mutation. Type III is autosomal dominant with new mutation. Rarely, recessive forms are also seen. Type IV is autosomal dominant.