How common are irregular periods in hypothalamic amenorrhoea?

Hypothalamic amenorrhoea can occur when the body is not receiving enough energy for its needs, training demands are high, weight changes occur, or ongoing stress affects the brain's reproductive signals. The cycle may change gradually, and some people notice irregular bleeding before periods stop. This pattern is not a diagnosis based on bleeding alone; pregnancy and other hormonal or medical causes may need to be considered.

Write down period dates, exercise load, eating changes, stress, sleep, and symptoms such as dizziness or feeling unusually cold. Book a medical appointment if cycles remain irregular, particularly if fertility is a concern. Assessment may include a pregnancy test, hormone testing, and a discussion of nutrition, activity, mental wellbeing, and bone health. Support should be individualised and non-judgemental.

Seek urgent care for fainting, severe weakness, chest pain, severe pelvic pain, or possible pregnancy with pain or bleeding. Arrange prompt review for persistent missed periods, recurrent stress injuries, marked weight change, or symptoms of disordered eating. A sudden severe headache or new vision problem also needs urgent assessment.

Could low energy availability or stress be affecting my cycle? What tests are appropriate? How can I adjust exercise and nutrition safely? Should we discuss bone health or fertility support?