Question: what are the risks of taking hormone replacement therapy?
Answer: Blood clots (venous thromboembolism) HRT tablets (but not patches or gels) are linked with a higher risk of developing a blood clot. ... 
Heart disease and stroke (cardiovascular disease) Studies show that: ... 
Breast cancer. ... 
Type 2 diabetes. ... 
Osteoporosis. ... 
Loss of muscle strength. ... 
Dementia.