The main causes of purple bruises under the eyes include lack of sleep, eye trauma, and pigmentation. If the patient is in a state of poor sleep quality or insufficient sleep for a long time, resulting in poor local blood circulation in the eyelids, blood stasis in the eyelid part of the eye caused by the lower part of the eyes purple that is dark circles, the patient can be used to hot compresses, accelerate the local blood circulation, improve the microcirculation to improve the poor, to improve the purpose of the dark circles under the eyes. If the patient’s eyes are impacted by external forces resulting in eye trauma, it is easy to cause eye capillary rupture bruising, so the skin can show dark purple. In addition, patients with pigmentation under the eyes, can also show the appearance of blue and purple under the eyes. It is recommended that patients with obvious bruising underneath the eyes seek prompt medical attention to evaluate their condition and follow the doctor’s instructions for treatment.