Objectives; This study was conducted to investigate the effect of pulsed magnetic therapy and aerobic exercise on post thyroidectomy osteoporosis.

Methods; Forty-five female patients, age ranged from 40 to 50 years old with osteoporotic changes in hip and pelvic region post thyroidectomy, were included in this study. They were selected from Endocrinology private clinics. They were assigned randomly into three groups, equal in number. Magnetic Therapy Group (group A); patients received the routine medical treatment (Bisphosphonates, Calcium, and Vitamin D) in addition to pulsed magnetic therapy on the pelvic region for 12 weeks (3 sessions/ week). Exercise group(group B); patients received the routine medical treatment in addition to moderate-intensity aerobic exercise for 12 weeks (3 sessions/week). Combined Magnetic Therapy and Exercise Therapy group (group C): patients received the routine medical treatment in addition to pulsed magnetic therapy and moderate-intensity aerobic exercise for 12 weeks. Evaluation of the three groups was performed at baseline and after 12 weeks of treatment by dual energy x-ray absorptiometry (DEXA).

Inclusion Criteria:

• All participants had undergone thyroidectomy since 6 months and had cognitive and educational level enough to understand the requirements of the study

Exclusion Criteria:

• All Patients with malignancies or receiving radiotherapy or chemotherapy, skin diseases, deep venous thrombosis or venous insufficiency, sensory impairment, renal failure, recent therapy with immunosuppressant or anticonvulsants, psychological problems or alcoholic drinkers were excluded from this study.