We start talking about varices when a vein becomes prominent, can be felt under the skin, and its diameter is more than three millimeters. It can become long and tortuous and as big as an inch. But before this stage we sometimes see complications such as skin problems related to the poor oxygenation of tissues and edema (varicose eczema, ocher pigment dermatitis).
About the phlebitis superficial (thrombosis) it is a clot that forms in the varices and the mouth. Very quickly the vein becomes very hard, painful, it feels under the skin. It must be consulted as soon as possible. Because if the clot located in a superficial vein extends to the deep venous network, there is a risk of pulmonary embolism by migration of this clot in the lung, which results in asphyxiation in the worst case.