This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
The most common manifestation of osteoporosis is - 
Select and explain. 
A. Compression fracture of the spine, B. Asymptomatic, detected incidentally by low serum calcium, C. Bowing of legs, D. Loss of weight
A: Compression fracture of the spine
Answer: A: Compression fracture of the spine 
Explanation: Clinical Features of osteoprosis-1.The clinical features depend upon the major clinical sequelae (fracture of the veebra, wrist, hip, humerus and tibia). 2.Pain is usually of acute onset in the dorsal and lumbar regions and often radiating to flanks and abdomen. Pain is often aggravated by bending, lifting weights or while jumping. 3.Loss of appetite and muscular weakness are also present. 4.The collapse fractures of veebral bodies (anterior) usually produce wedge shaped deformity with loss in height and results in dorsal kyphosis and exaggerated, cervical lordosis (dowager or widows hump). 5.Scoliosis is also common. R ALAGAPPAN MANUAL OF PRACTICAL MEDICINE FOUH EDITION PAGE NO-690