Hot flashes before a period and PMS

Premenstrual syndrome can involve physical and emotional symptoms in the days before bleeding, followed by improvement after the period begins. Hormone fluctuations may influence temperature regulation, so some people notice brief warmth, sweating, or flushing alongside bloating, cramps, headache, irritability, or breast pain. Breast pain is a symptom that can also occur before menstruation, but it does not explain every episode of flushing.

A predictable premenstrual pattern supports a cycle-related explanation, while hot flashes throughout the month, episodes that continue after bleeding, fever, weight change, or new medicines suggest the need to look more broadly. Keep a daily record for at least a few cycles, including symptoms and their impact.

Wear light layers, cool the room, drink water, and pause during an episode. Regular sleep, gentle activity, and balanced meals may make the premenstrual days easier for some people. Avoid changing prescribed medicines without advice. If symptoms are severe or interfere with life, discuss options with a clinician. The combined pill may help some cycle-related symptoms, but it is not suitable for everyone and requires a personal safety review.

Arrange a review if flushing is new, lasts beyond the premenstrual phase, happens with fever, causes repeated night waking, or is accompanied by a major change in bleeding. Seek urgent help for chest pain, severe breathlessness, fainting, confusion, or signs of a serious allergic reaction. A clinician can assess the timing and decide whether another cause is present.

Does the timing fit PMS or another condition? Should I keep a symptom and cycle diary? Could my medicines or contraception affect flushing? Would a combined pill be appropriate for me, and what alternatives exist?