Guides · Updated 2026-10-25
How to tell if your HRT is working
Short answer: The most reliable way to tell whether HRT (hormone replacement therapy) is working is to track the same symptoms every day for at least 8 to 12 weeks and compare how severe they are before and after you started, or on-dose versus off-dose. Many people notice changes within a few weeks, and the NHS suggests taking it for at least 3 months, if possible, to see if it helps. Bring your notes to your doctor before changing anything.
How long does HRT take to work?
Hot flashes and night sweats are often the first symptoms to ease, sometimes within a few weeks. Mood, sleep, brain fog and joint aches can take longer. The UK's NHS says it may take a few weeks before you notice symptoms improving, and that it's best to keep taking HRT for at least 3 months, if possible, to see if it helps.
Side effects such as breast tenderness, bloating or spotting are common at the start and often settle in the first few months. Tell your doctor if they don't, or if anything worries you.
Which symptoms to track
Pick the symptoms that bother you most and track the same ones every day. Common ones are hot flashes, night sweats, sleep problems, mood dips, anxiety, brain fog, joint pain, headaches, low libido and irregular bleeding.
Rate each one on a simple scale (for example 0 to 5) rather than writing notes. Numbers are easy to compare over weeks; memories are not. Also note things that make symptoms worse, like caffeine, alcohol, stress and poor sleep, so you don't blame or credit HRT for something else.
Compare like with like
Write down when you take or apply each dose. If you use patches, gels or a cyclical regime, symptoms can change between doses, so comparing your on-dose and off-dose windows tells you more than a general feeling.
Look at averages over weeks, not single days. One bad night doesn't mean HRT has stopped working. A pattern needs enough days of data to be real.
What to bring to your appointment
A one-page summary works best: your main symptoms and how severe they were before HRT, how they have changed since, your dose and timing, and any side effects. This helps your doctor decide whether to keep your dose, change it, or try a different type.
Never stop or change HRT on your own based on tracking alone. Use it to have a better conversation with your clinician.
Menorai does this for you on iPhone: log symptoms in two taps, log your HRT doses, and Menorai compares symptom severity in your on-dose and off-dose windows over 90 days. It only reports a pattern when there is enough data, and it can export a doctor-ready PDF.
Get Menorai on the App Store Learn moreFrequently asked questions
How long does it take for HRT to start working?
Many people notice hot flashes and night sweats easing within a few weeks, and the NHS suggests taking it for at least 3 months, if possible, to see if it helps. That's why HRT is usually reviewed after about three months.
How do I know if my HRT dose is too low?
If your main symptoms haven't improved after about three months of consistent use, the dose or type may not be right for you. Track your symptoms daily and share the results with your doctor, who can decide whether to adjust it.
What is the best way to track menopause symptoms?
Rate the same few symptoms every day on a simple scale, record when you take HRT, and compare averages over weeks. A tracking app such as Menorai can do this automatically and create a summary for your doctor.
Sources
This guide is general information, not medical advice. Tracking shows patterns; it doesn't diagnose or treat anything. Talk to a doctor about your symptoms and treatment.