The authors say their findings support a number of previous studies, including German research that found a 7-fold higher rate of DVT among people with varicose veins than those without the condition. Pulmonary embolism is a blood clot that occurs in the arteries in the lungs, and peripheral artery disease narrows the arteries leading to the legs, stomach, arms and head.
If you are living with varicose veins and they're becoming increasingly painful, it's best to speak to a health professional to see what treatment options are available.
Veins are blood vessels that return deoxygenated blood to the heart.
Varicose veins are swollen and broadened veins that more often than not happen on the legs and feet. Varicose veins can also happen during pregnancy, when hormonal and circulatory changes may bring about enlarged veins in the legs.
They began with the thought "that varicose veins might be causal", he said.
Though they considered the health records of over 425,000 adults, the researchers say that even more work is needed to understand whether this relationship is one in which varicose veins directly cause blood clots or whether the two conditions simply have a similar origin.
Shyue-Luen Chang, M.D., from the Chang Gung Memorial Hospital in Taoyuan, Taiwan, and colleagues enrolled 212,984 patients with varicose veins (aged 20 years and older) from January 1, 2001, to December 31, 2013. Obesity and a family history of the condition also increases the risk.
Doctors in Taiwan studied almost 213,000 patients with varicose veins and those without varicose veins.
The study was supported by grants from Chang Gung Medical Research Program, and from the Taiwan Ministry of Science and Technology.
Every year around 25,000 people in the United Kingdom bite the dust from a blood clot in a vein, and the condition is additionally the third driving reason for heart assaults and strokes.