How common is delayed puberty in hypothalamic amenorrhoea?

The hypothalamus helps coordinate signals between the brain and reproductive organs. When energy intake is too low for the body's needs, exercise demands are high, weight changes occur, or significant stress affects the body, these signals may become less frequent. Puberty can then start later or progress slowly, and menstrual periods may not begin or may stop. Other explanations for delayed puberty include inherited patterns, thyroid or pituitary conditions, chronic illness, and differences in reproductive anatomy, so assessment should look beyond one possibility.

Arrange an appointment with a GP, paediatrician, adolescent-health clinician, or endocrinologist. Bring information about growth, exercise, eating patterns, stress, medicines, and family timing of puberty. Care may focus on restoring adequate energy, moderating training, and addressing stress or illness with support from the appropriate team. Do not start hormones or make major changes to food or exercise without personalised guidance, especially if there is weight loss, disordered eating, or another medical condition.

Seek assessment when expected pubertal changes have not started, development has stalled, or periods remain absent after they begin. Prompt care is needed for fainting, chest symptoms, severe weakness, rapid weight loss, persistent vomiting, severe headaches, or vision changes. Reduced oestrogen over time can affect bone health, so an evaluation is worthwhile even when the person otherwise feels well.

Ask which examinations and hormone tests are needed, whether growth and bone health should be monitored, and how nutrition, exercise, stress, or another illness may be contributing. Ask when follow-up should occur and which specialist or dietitian can provide support.