Jugular venous dilatation is commonly seen in external jugular veins, where large dilated veins can be seen on the body surface on both sides of the patient’s neck. This condition usually does not have any effect on the body and is not dangerous to health, so observation is usually sufficient. However, the following should be noted throughout the observation period: 1. Avoid localized external forces such as squeezing or hitting the blood vessels in order to avoid damage to the intima and the formation of thrombus in the already dilated veins. If thrombosis occurs, it must be seen in hospital as soon as possible for further examination or treatment. 2. If the degree of dilatation is so large that it seriously affects normal work and life, or affects the beauty of the face and neck, it can be surgically removed to achieve the purpose of cure.