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Table 1 Radiation doses and risk of gonadal failure (High risk: > 80% sterilized; Mild risk: 20–80% sterilized; Low risk: < 20% sterilized)

From: Radiations and female fertility

Radiation Doses Risk of Ovarian Failure
Prepubertal girls 15–40 years >  40 years
Pelvic/abdominal irradiation
  < 6Gy Mild risk No adverse effects No adverse effects
 15 Gy High risk Low risk Mild risk
 25–50 Gy High risk Mild risk High risk
 50–80 Gy High risk Mild risk High risk
  > 80 Gy High risk High risk High risk
Cranio-spinal irradiation > 25 Gy Mild risk Mild risk Mild risk
Total body irradiation High risk High risk High risk