Blood Pressure UK explained: “High blood pressure makes your heart work harder than it needed to before.
“Over the space of many years, this extra effort can lead to the heart muscle becoming thicker and less effective at pushing the blood round. This allows fluid to build up in your ankles, which causes them to swell up.”
Swollen ankles can also be a side effect of some blood pressure medicines, in particular calcium channel blockers, the charity noted.
Initially, the symptom is more of an inconvenience than a concern, but if left untreated over a long period of time, it will start to put unwanted pressure on the blood vessels and tissues of the ankle.
“This can lead to problems such as cellulitis (where the skin becomes infected and can lead to abscesses if not treated), varicose veins and venous ulcers (ulcers on the outer layers of the skin),” Blood Pressure UK said.