Turner Syndrome (TS) is partial or total monosomy X with a prevalence of 2500/1 and characterized by premature ovarian failure, short stature, and multiple skeletal anomalies and is also called congenital ovarian dysplasia. Delayed puberty and estrogen deficiency are some of the determining factors for Osteoporosis formation in TS. Bone mineral density is among the best parameters to evaluate the bone mineral condition. Most female TS patients need estrogen replacement treatment to stimulate and continue feminization and to prevent osteoporosis. Forty-two years-old patient with TS was admitted to our clinic for rehabilitation following a right distal radius fracture occurring when she was trying to get up from the floor trying to get support from her right hand. The patient with primary amenorrhea wasn't admitted to the hospital before except her admittance for amenorrhea when she was 20 years old and was diagnosed with Turner syndrome. In her bone mineral density (DXA) measurement, L2-L4 vertebra BMD T-score was -4.0 (0.719 g/cm), Z score was -3.8, total femur T-score was 1.7 (0.788 g/cm) and femur neck T score was -1.7 (0.799). No pathological vertebral fractures were detected. The patient was given oral risedronate sodium 35 mg and calcium 1200 mg vitD 3 880 IU/day treatment for osteoporosis and followed-up. Our aim in this case presentation was to present the fact that severe osteoporosis and fracture may occur unless early hormone replacement treatment is started in a primary amenorrheic patient with Turner Syndrome.