HRT risks and benefits

With HRT, benefits and risks both depend on the same handful of things: your age, whether it is combined or estrogen-only, whether it goes through the skin or comes as a tablet, how long you take it, and your own history. NICE NG23 asks doctors to tailor the conversation to exactly those (1.4.2).

This page is the map. The sums for you get done with your doctor, ideally with NICE's discussion aid on the desk.

The benefits

The NHS website lists relief from hot flushes, night sweats, sleep problems, anxiety and low mood caused by the menopause, and vaginal dryness. It also says HRT helps prevent osteoporosis, the bone thinning that follows the fall in estrogen, and helps keep muscles strong. NICE NG23 says fracture risk falls while you take HRT and the benefit fades once you stop. See bone health.

Breast cancer

This is the big one, so the exact words matter. NICE NG23 says breast cancer risk rises with combined HRT, more the longer it is taken, and falls after stopping, though some raised risk persists for at least 10 years. It adds: "There is a very small increase in risk of death from breast cancer with combined HRT." With estrogen-only HRT, NICE says there is very little or no increase.

The British Menopause Society's January 2026 tool for clinicians notes that a relative with breast cancer may raise your own background risk but is not by itself a reason HRT is ruled out. More in breast health.

Blood clots and stroke

NICE NG23 is plain on clots: "VTE risk is not increased with transdermal HRT." And: "VTE risk is greater with oral than transdermal HRT." Transdermal means through the skin; VTE means a blood clot in a vein.

On stroke, NICE says HRT tablets raise the risk, more so with higher doses, longer use and an older starting age, while estrogen through the skin is unlikely to raise it.

Heart, diabetes and the womb

"Coronary heart disease risk does not increase with combined HRT," says NICE NG23, and "The risk of developing type 2 diabetes does not increase with HRT." NICE also says HRT should not be offered to prevent heart disease or dementia, and that overall it is unlikely to change life expectancy.

For South Asian women this section matters more. The BMS notes higher rates of insulin resistance, diabetes, central weight gain and high blood pressure in South Asian women around the menopause. See heart health and diabetes risk.

With a womb, estrogen on its own raises the risk of womb cancer, which is why a progestogen is added (NICE NG23).

Gallbladder

The Menopause Society, in the US, says HRT raises the risk of gallstones and rates that evidence as strong. Observational studies suggest less risk through the skin than with tablets, not yet confirmed in trials.

NICE NG23 asks doctors to discuss the benefits and risks of every option, not just HRT (1.4.1). On when to start, The Menopause Society agrees with the PMS that before 60 or within 10 years of the menopause is best, and rates that evidence as strong. Starting after 60 is not ruled out, it says, but needs careful weighing of your own benefits and risks.

The PMS recommendations say there should be no fixed limit on how long HRT is taken: carrying on is decided jointly by you and your doctor, looking at your goals and your benefits and risks at each review (section 5.14). The European Menopause and Andropause Society (EMAS) and The Menopause Society agree, and EMAS says stopping routinely at 65 is not recommended.

If the balance does not work for you, the guidelines list non-hormonal treatments.

If you are worried about the risks, whether you are thinking of starting or already taking HRT, the NHS website says to speak to a doctor. Bring your family history of breast cancer, blood clots, heart disease and stroke.

While you take HRT, the NHS website asks you to keep going to breast screening, and lists the signs to act on: a new breast lump, pain or swelling in one calf, or unexpected bleeding needs a doctor. Chest pain with breathlessness needs emergency help.

The BMS notes that in many communities the menopause is seen as natural, and some women hesitate to use medicine for something natural. Some ask whether easing it with medicine sits right with their faith. That question deserves a qualified scholar, not a guess.

At home, the fear often arrives secondhand. You do not have to win that argument at the dinner table. Take the questions above to your doctor and bring the answers home.