3 types of lesions
1/ What is an ecchymosis?
An ecchymosis occurs when small vessels in the skin rupture after an impact. This bruising is often painful to the touch; the harder the knock, the more painful it is. The colour of an ecchymosis changes over time as the skin heals itself. The ecchymosis starts out red, then becomes black, blue and finally, green. At the end of the repair process, it is yellow/brown and remains that colour for one to two weeks. But it can take longer if the lesion is large.
2/ What is an oedema?
An oedema — also called a bump — can appear rapidly after the knock.
3/ What is a haematoma?
A haematoma is the combination of an ecchymosis (bruise) and an oedema (bump). The first thing you should do is to apply compression and ice to the area impacted or to speed up elimination with targeted active ingredients before seeing a doctor, if necessary.