Why do some wounds turn purple?

The reason a wound turns purple is because of broken blood vessels. The body, wanting to send nutrients to the injured area, creates new blood vessels. It can also be caused by a lack of oxygen to the area or simply bruising (busted veins and capillaries cause blood to collect beneath the skin). Overtime, as the wound heals, the color will also fade.

There are three reasons to why wounds might turn purple. One of those reasons could be because of it bruising around the edges meaning that it was done very harshly with a lot of force. The second reasons could be because of it not getting enough oxygen, this could be because of blood flow or many other reasons. The third reason that it could turn purple is it is slightly infected. But this is only if it is an open wound. The last two can be very serious because it could make things even worse than they possibly could be.

Wounds turn purple because under the surface of your skin your body is replenishing collagen and there's an increased amount of blood flow in that area giving it it's purple hue.

From my knowledge as an EMT, there are several different types of wounds I know of that could be purple. Contusions, ecchymosis, and scars can all be purpleish. Contusions and ecchymosis can be purple because of minor bleeding from blood vessels underneath the skin. Scars can turn purple as part of the healing process.

Physical wounds turn purple due to the blood in your body. When a blood vessel (the small streams that carry your blood throughout your body) breaks or is injured, the body responds by trying to rebuild the vessel. It then sends blood to that area. This is why it can become discoloured and turn a purple-ish colour.

If you mean literally, like bruising - the reason for that is actually scientific. The capillaries under the skin burst when hit with trauma, causing blood under the surface to be trapped within under your skin. Our actual blood color before reaching oxygen is much darker in color, and can look purple or blue because the light refracting through our veins. The reason this happens within scar tissue is because it's blood being sent to that area to repair it, causing it to appear to be a purple/blueish color. In case you were curious, our veins aren't actually blue, either. They're dark red but reflect poorly in light, and end up casting a blue-ish hue because of it.

Sometimes it's because of a direct result of broken blood vessels under the skin. It signals the rest of your body to assist the blood flow.

Blue or purple is normally an old bruise. It is initally reddish or yellow, then it slowly fades into blue/purple while healing. After going blue (this is in a situation of a bruised injury) they will normally fade slowly ligher and lighter, and then eventually dissapear.

A wound turns purple due to the bruising process. When the body is struck by something, the small blood vessels close by to the skin surface rupture, and thus bruise by turning purple.

In addition to the broken blood vessels that surround the damaged area, our bodies form inflammation chemicals to speed up the recovery process. The scars need this initial inflammation to trigger the healing process. The consequence of this is the reddish purple scars on our skins.