Hot Flushes: Causes, Diagnosis and Treatment

Hot flushes are sudden waves of heat and sweating that may accompany hormonal change, and persistent symptoms can be assessed and treated.

A hot flush is a sudden feeling of heat, often across the face, neck or chest. Sweating, flushed skin, a rapid heartbeat, chills after the episode, or a feeling of unease may follow. Episodes can happen during the day or at night; night sweats can interrupt sleep and leave you tired the next day.

Triggers vary. Warm rooms, layered clothing, hot drinks, alcohol, spicy food, stress and smoking may make episodes harder to manage for some people. Keeping a brief record can show whether a particular trigger or time of day is involved.

Hot flushes alone are not usually an emergency. Seek urgent help for heat with chest pain, severe breathlessness, fainting, confusion, a new neurological symptom or a very high temperature. Sudden sweating with feeling acutely unwell also needs prompt assessment because it may not be a menopausal symptom.

Arrange an appointment if episodes are new, persistent, disturbing sleep, or occurring with unexplained weight change, fever, palpitations or changes in your periods. Mention any medicines or supplements that were started before the symptoms appeared.

The causes below are listed alphabetically, not as a likelihood ranking. Menopause can cause hot flushes as ovarian hormone levels change and periods stop. Perimenopause is the transition before menopause, when hormone fluctuations may produce flushes alongside changing cycles. Premature ovarian insufficiency can cause menopausal symptoms when ovarian function reduces earlier than expected.

Other explanations can include medicines, infection, thyroid problems, low blood sugar or anxiety. A clinician considers the full symptom pattern rather than treating the flush in isolation. The timing of periods, age, medical history and medication list all help narrow the possibilities.

Assessment starts with questions about when episodes began, how often they occur, their duration, night sweats, sleep, menstrual changes, possible triggers and other symptoms. Your clinician may check your temperature, pulse, blood pressure and general health, then review medicines and supplements.

Tests are guided by the history. If symptoms suggest a thyroid disorder, infection, pregnancy or another cause, blood tests or other checks may be appropriate. For people who may have premature ovarian insufficiency, the clinician may arrange hormone testing and discuss cycle history. Do not stop prescribed medicine without medical advice.

Treatment is selected according to the cause, symptom burden, health history and personal preferences. Hormone replacement therapy can reduce menopausal hot flushes for suitable people; a clinician will discuss benefits, risks and the form of treatment. It may not be appropriate for everyone.

Non-hormonal menopause treatment may suit someone who cannot use hormones or prefers another approach. If a medicine or thyroid problem is contributing, reviewing that cause may improve symptoms. Premature ovarian insufficiency needs individual assessment because treatment may also address longer-term health needs.

Wear light layers, keep the bedroom cool and use a fan or cool drink when a flush starts. Note whether alcohol, spicy food, caffeine, smoking, stress or a warm environment precedes episodes, then adjust the triggers that clearly affect you.

Regular movement, steady sleep routines and relaxation practices may support wellbeing, although they do not remove every flush. If night sweats are disrupting sleep, discuss that specific impact at an appointment rather than relying only on self-management.

People may also notice night sweats, sleep difficulty, mood changes, vaginal dryness, reduced concentration, headaches or changing periods. Palpitations can occur during a flush, but chest pain, fainting or severe breathlessness should be treated as urgent symptoms rather than assumed to be hormonal.

A GP, family doctor or gynaecology clinician can assess new or troublesome flushes. Bring a symptom record, menstrual history and medicine list. The consultation can separate hormonal symptoms from other causes and help you choose a management plan that fits your health and preferences.