Bone and heart consequences of early menopause

When breast cancer treatment causes menopause earlier than it would naturally happen, the body loses the protective effects of oestrogen for more years. Oestrogen helps maintain bone strength by slowing the natural breakdown of bone, and it supports healthy blood vessels, cholesterol levels and blood sugar control. After early menopause, bone loss speeds up, particularly in the first few years, which raises the risk of osteoporosis and fractures of the spine, hip and wrist later in life. Aromatase inhibitors, which lower oestrogen even further, add to this bone loss. Early menopause is also linked with a higher long-term risk of heart disease and stroke, partly through changes in cholesterol, blood pressure, weight around the waist and insulin sensitivity. Some breast cancer treatments, including certain chemotherapy and HER2-targeted medicines and radiation to the left side of the chest, can also affect the heart, adding to the importance of heart care. Because hormone replacement therapy is usually avoided after breast cancer, protecting bones and heart relies on other measures: bone density scans, calcium and vitamin D when needed, weight-bearing and strength exercise, bone- strengthening medicines if bone loss is significant, not smoking, keeping a healthy weight, and regular checks of blood pressure, cholesterol and blood sugar.

Bone loss can be silent

Thinning bones cause no symptoms until a fracture occurs, so screening matters.

Heart risk builds over time

Healthy habits now reduce long-term heart problems.

Prevention works

Most risks can be lowered with regular checks and lifestyle changes.

Heart-healthy habits benefit your whole body.

Stay active

Aim for regular moderate activity, such as brisk walking, most days of the week.

Eat for heart health

Choose vegetables, fruit, whole grains, pulses and nuts, and limit fried and processed foods.

Do not smoke

Stopping smoking is one of the most effective ways to protect the heart.

Regular checks

Have blood pressure, cholesterol and blood sugar checked regularly.

Know your treatment history

If you had treatments that can affect the heart, ask whether heart monitoring is needed.

Early menopause and some cancer treatments can change how the body stores fat and handles sugar and cholesterol, which affects long-term heart health.

Weight around the waist

Many women notice weight gain around the abdomen after menopause, even without eating more. Abdominal fat is linked with higher heart and diabetes risk.

Blood sugar

Insulin can work less effectively after menopause, and steroids given with chemotherapy can raise blood sugar temporarily. Regular checks help detect diabetes early.

Cholesterol

Loss of oestrogen often raises unhealthy cholesterol levels. A simple blood test measures this.

What helps

Regular activity, balanced meals with plenty of vegetables, pulses and whole grains, fewer sugary drinks and fried snacks, and good sleep all support metabolism.

Medicines when needed

If blood pressure, sugar or cholesterol remain high, your doctor may recommend medicines to protect the heart.

Waist measurement

Measuring your waist occasionally is a simple way to track changes alongside weight.