Transient osteoporosis is a rare clinical syndrome of unknown etiology. It is believed that this syndrome is self-limiting; however, the data in the literature support the use of anti-resorptive agents that may reduce pain and decrease the duration of the illness. Herein, we describe two cases of transient osteoporosis of the hip and one case of transient osteoporosis of the knee where the use of oral bisphosphonates provided successful objective and subjective outcome.