Changes in the skin of the lower legs, often described as 'shiny shins,' can be an overlooked warning sign of peripheral arterial disease (PAD), a serious circulation problem, according to Dr. Ellie. This condition, which affects arteries in the legs, is caused by the same process that leads to heart attacks and strokes: the buildup of fatty plaques in arteries, restricting blood flow and oxygen to vital tissues.
PAD can manifest as skin that appears tight, smooth, and glossy, often accompanied by a loss of hair on the lower legs. These visual cues are direct results of the reduced blood supply, which starves the skin of essential nutrients. Furthermore, cuts and scrapes may heal slowly, potentially leading to painful ulcers or, in severe cases, tissue death requiring amputation.
While PAD primarily affects the legs, the underlying arterial disease is often systemic. If arteries in the legs are narrowed, it suggests that arteries supplying the heart and brain may also be compromised, significantly increasing the risk of heart attacks, mini-strokes, and strokes.
The primary risk factor for PAD is smoking, which can increase the likelihood of developing the condition by fourfold. Other contributing factors include high cholesterol, high blood pressure, obesity, diabetes, a sedentary lifestyle, and a family history of circulatory problems – many of the same factors that contribute to heart disease.
PAD is remarkably common, with estimates suggesting that up to one in five individuals over 60 may have some degree of the condition. Many experience no symptoms beyond the characteristic skin changes. A more classic symptom is an aching or cramping pain in the calves that occurs during walking and subsides with rest, often referred to as 'angina of the legs.' As the disease progresses, pain may occur even at rest, particularly at night, leading some patients to hang their legs over the side of the bed for relief.
Other warning signs include legs that appear red when standing but pale when elevated. Reddening of the skin when standing that turns pale when the legs are raised can also be indicative of compromised circulation.
Diagnosis and Management
Diagnosis typically involves a simple blood pressure test, along with blood tests to identify underlying causes such as diabetes and high cholesterol. Treatment focuses on preventing the condition from worsening, often involving statins and blood pressure medication. For smokers, quitting is paramount.
Exercise, though potentially difficult due to pain, is proven to improve circulation by encouraging the growth of smaller arteries in the legs. Supervised exercise programs, which can be recommended by a GP, are often found to be most beneficial. Additionally, regular moisturizing of the skin on the legs can help prevent breaks and sores that could lead to infections and ulcers due to poor circulation.
It is important to note that not all shiny shins are indicative of PAD. The appearance can also result from regular shaving, natural thinning of the skin with age, or fluid retention and venous issues causing swelling. However, given the potential seriousness of PAD, any persistent or concerning changes in leg skin appearance warrant a medical evaluation.