According to WHO( World Health Organisation), Osteoporosis is a systemic skeletal disease characterized by low bone mass & microarchitectural deterioration of bone tissue leading to enhanced bone fragility & a consequent increase in fracture risk. Osteoporosis is far commonest Metabolic Bone Diseases. It occurs when the Rate of Bone Resorption exceeds Rate of Bone Formation. This weakness in bone and brittleness results in the reduction of BMD due to a deficiency of Vitamin D and Calcium. Deficient calcium absorption from the intestine. ↓ Stimulates parathyroid gland ↓ Parathyroid Hormone resorbs Calcium from bone ↓ OSTEOPOROSIS Classification: Primary Osteoporosis : Type 1 - Postosteoporosis Type 2 - Senile osteoporosis Secondary Osteoporosis Due to some diseases such as Endocrine, Malignancy, prolong intake of medicine eg: steroids, antiepileptics, etc. Causes for osteoporosis: Senility Post immobilization e