Veins bulge when blood pools in weakened or damaged veins, rather than flowing smoothly back to the heart. This often results in varicose veins—swollen, twisted veins that typically appear on the legs but can also show up on the arms.

According to Cleveland Clinic, varicose veins are often triggered by hormonal changes (especially during pregnancy), obesity, genetics, smoking, or spending long periods standing or sitting.

Doctors may recommend treatments such as compression stockings, leg elevation, injection therapy, or even vein surgery, depending on severity.

If untreated, varicose veins may lead to venous ulcers, which are open wounds that form near the ankles and heal slowly due to poor circulation.

Other serious complications include blood clots, which can develop into conditions like deep vein thrombosis, superficial thrombophlebitis, or pulmonary embolism.

While varicose veins can