Why does hypothalamic amenorrhoea cause missed period?

A regular period depends on a sequence of signals between the hypothalamus, pituitary gland and ovaries. Hypothalamic amenorrhoea can quiet the first part of this sequence when the body senses insufficient available energy, heavy physical training, major weight change or sustained stress. Without consistent stimulation, an egg may not mature or be released. The ovary then produces less of the hormones that prepare and later shed the uterine lining, so bleeding may not occur. Missed Period is a common presentation of Hypothalamic Amenorrhoea. Pregnancy and other medical conditions can also delay bleeding, so a missed cycle needs context rather than a conclusion.

Consider a pregnancy test when pregnancy is possible, then arrange medical advice if the pattern continues or concerns you. Share details about food intake, exercise, stress, recent illness, weight change, medicines and previous cycle patterns. Evaluation may include hormone tests and a review of bone and reproductive health. Treatment is directed at the cause, often with support for adequate nutrition, balanced activity and emotional wellbeing.

Seek urgent care for severe abdominal or pelvic pain, fainting, or heavy bleeding, especially if pregnancy is possible. Contact a clinician promptly for headaches with vision changes, rapid weight loss, marked weakness, or repeated missed cycles.

Should I test for pregnancy or other hormone conditions? Could my activity, nutrition, stress or recent illness be affecting ovulation? How will we protect bone health while my periods are absent?