Osteoporosis is characterized most commonly by -a) Fracture vertebrab) Backache c) Bowing of legsd) Abdominal pain
Clinical features of osteoporosis 

Osteoporosis is an asymptomatic disorder unless complications (predominantly fractures) occur.
Most common symptom of osteoporosis is back pain secondary to vertebral compression fracture.
Dorso-lumbar spine is the most frequent site.
Other common sites of fracture are lower end radius (Colle's fracture) and fracture neck femur.
ab
a
ad
bc