<unk> s in children and adolescents can result from a diverse array of disorders namely; metabolic, endocrine, neoplastic, infectious, immunologic, and genetic skeletal dysplasias. Juvenile osteoporosis * Primary hyperparathyroidism * Simple bone cyst * Aneurismal bone cyst * Osteoporosis * Chronic osteomyelitis * Osteogenesis imperfecta * Osteomalacia * Rickets * Renal osteodystrophy * Malignant infantile osteopetrosis * juvenile osteoporosis * juvenile rheumatoid arthritis Miscellaneous causes * Monostotic fibrous dysplasia * Eosinophilic granuloma * Bone atrophy secondary to diseases like polio
Pathologic fracture
Occult fracture
Intraarticular fracture
Nonunion
Open fracture
Pica 
Osteolysis
Intermittent claudication