Ecchymoses form when small blood vessels (capillaries) beneath the skin are damaged and blood leaks into the surrounding tissue. Commonly known as ‘bruising’, this usually occurs as a result of trauma (an impact, a knock or a fall).
Ecchymosis can also develop after injectable procedures in aesthetic dermatology. Some people's skin is more prone to bruising. Certain blood disorders or medications (blood thinners) can also cause bruising. Some supplements taken before aesthetic procedures, and excessive green tea consumption, can also increase the likelihood of bruising.
The colour change in a bruise relates to the body's process of breaking down and reabsorbing the blood
It initially appears purple or blue.
It then turns to green or yellow tones.
In the final stage of healing, it takes on a brown or light yellow colour.
If the cause of a bruise isn't clearly evident, especially if bruising occurs often and easily, it's important to consult a doctor to rule out an underlying health issue such as a bleeding disorder.