A strange 'net-like' pattern on the skin could be a sign of blocked arteries, according to experts. The American Academy of Dermatology (AAD) warns that a blue or purple discolouration known as livedo reticularis may indicate a blockage in small arteries, potentially leading to damaged tissues and organs.
Cardiovascular disease is the leading cause of death worldwide, responsible for nearly 18 million fatalities annually. In the UK, it accounts for around a quarter of all deaths. While common symptoms like chest pain are well known, other signs can appear in unlikely places, including the skin.
The AAD explains that livedo reticularis is often harmless and can be triggered by cold temperatures or certain medications, disappearing when the skin warms up. However, if the pattern persists, it may signal a more serious condition called cholesterol embolisation syndrome, where small arteries become blocked.
The Mayo Clinic advises seeing a doctor if the mottled skin does not go away with warming. A related condition, livedo racemosa, which looks similar, may also be caused by a serious underlying condition.
