How long it takes for bruising to subside is mainly related to the cause, location and area, and should be analyzed on a case-by-case basis, not as a generalization. There are many causes of bruising, such as trauma, thrombocytopenia, vitamin C deficiency, and coagulation disorders such as hemophilia, all of which can lead to rupture of blood vessels or microvessels, and blood can then leak out to the outside of the blood vessels, which clinically manifests as local skin bruising. Usually, traumatic facial bruising can subside in about 1 week because of the rich blood supply to the face, while traumatic extremity bruising usually takes about 2 weeks to subside. In addition, for bruises caused by hematologic disorders, the time for the bruises to subside depends on the individual’s condition and the effectiveness of treatment. It is recommended to follow the professional doctor’s guidance, give appropriate hot compresses after the formation of bruises, and pay attention to a light and nutritious diet during the treatment period.