A 15-year-old female basketball player with secondary amenorrhea has BMI in the 3rd percentile. What is the recommended course of action?

A 15-year-old female basketball player with secondary amenorrhea has BMI in the 3rd percentile. What is the recommended course of action?

• A. That amenorrhea in female athletes is not concerning
• B. That she should begin a program of plyometrics and strength training
• C. To consider a different sport, such as volleyball
• D. To work with a dietician to improve healthy weight gain

Answer: (D)

Secondary amenorrhea in a teen athlete who has a very low BMI signals insufficient energy availability driving suppression of the hypothalamic-pituitary-ovarian axis. When energy intake falls short of what the body needs for growth, puberty, and daily activity, the body conserves energy by delaying or interrupting reproductive function. Restoring menstrual function and protecting bone health hinges on correcting this energy deficit, especially in a growing adolescent. The best course is to work with a dietitian to promote healthy weight gain through a balanced, individualized nutrition plan. A dietitian can assess caloric needs, develop a gradual plan to restore weight, and ensure adequate intake of calcium, vitamin D, and other nutrients essential for bone health. This multidisciplinary approach addresses the root issue—energy deficiency—while supporting overall growth and development. Other options don’t tackle the underlying problem. Merely deeming the amenorrhea non-concerning ignores a warning sign of energy deficiency. Initiating specific training like plyometrics or strength work doesn’t fix the energy balance and could even worsen the issue if calories aren’t increased. Switching to a different sport might reduce some energy expenditure, but without restoring adequate nutrition, menstrual function and bone health remain at risk.

Secondary amenorrhea in a teen athlete who has a very low BMI signals insufficient energy availability driving suppression of the hypothalamic-pituitary-ovarian axis. When energy intake falls short of what the body needs for growth, puberty, and daily activity, the body conserves energy by delaying or interrupting reproductive function. Restoring menstrual function and protecting bone health hinges on correcting this energy deficit, especially in a growing adolescent.

The best course is to work with a dietitian to promote healthy weight gain through a balanced, individualized nutrition plan. A dietitian can assess caloric needs, develop a gradual plan to restore weight, and ensure adequate intake of calcium, vitamin D, and other nutrients essential for bone health. This multidisciplinary approach addresses the root issue—energy deficiency—while supporting overall growth and development.

Other options don’t tackle the underlying problem. Merely deeming the amenorrhea non-concerning ignores a warning sign of energy deficiency. Initiating specific training like plyometrics or strength work doesn’t fix the energy balance and could even worsen the issue if calories aren’t increased. Switching to a different sport might reduce some energy expenditure, but without restoring adequate nutrition, menstrual function and bone health remain at risk.