Why does hypothalamic amenorrhoea cause periods stopped?

The hypothalamus normally sends regular pulses to the pituitary gland, which then signals the ovaries to mature and release an egg. When the body detects too little available energy, intense training, substantial weight change or ongoing stress, the hypothalamus may reduce this reproductive signalling. Ovulation can stop, ovarian hormone levels can fall, and the uterine lining may no longer build and shed in its usual pattern. Periods Stopped is a very common presentation of Hypothalamic Amenorrhoea. Other causes, including pregnancy and thyroid or ovarian conditions, can also stop bleeding and need consideration.

Take a pregnancy test if pregnancy is possible and book a medical assessment for absent periods. Prepare information about your usual cycles, eating pattern, exercise, stress, weight changes, medicines and symptoms such as headaches or breast discharge. A clinician may request hormone tests and assess factors that affect bone health. Recovery usually centres on the underlying cause, with support to improve energy availability, adjust training and manage psychological strain when relevant.

Seek urgent care for severe pelvic pain, fainting, or heavy bleeding, especially after a positive pregnancy test. Seek prompt review for vision changes, a severe or new headache, rapid weight loss, significant weakness, or periods that remain absent.

What tests will identify why my periods stopped? Could low energy availability or stress be suppressing ovulation? Do I need advice about bone protection, nutrition or exercise while my cycle recovers?