Black and bruised intro8/5/2023 ![]() These tests are used to determine whether the contusion is occurring as a result of a significant or full tear of the muscle in the area, damage to an internal organ, a deep vein thrombosis (blood clot), or even a fracture to a local bone - all of which may require further medical attention. Most forms are imaging aren’t necessary if a contusion is all that is suspected. In most cases of contusions no further investigations are required, however, in cases where the extent of the damage to the injured area is in question, an ultrasound, magnetic resonance image (MRI) test, a computed tomography (CT) scan, or an x-ray may be ordered. Your health care professional may palpate (feel) around the contused area to see if there are any areas of hardness developing within the contused area, which can mean a complication is developing (see Complications below). Generally the presence of a contusion can be diagnosed by the patient themselves when they see it. How do health care professionals diagnose the problem? The worst of the damage, however, will be noted in the dark purple or black areas. It should be noted that most bruises are multi*colour*ed as different areas of the tissue are damaged at different intensities and with different forces. Eventually the body absorbs the last of the damaged tissue and the skin returns to its normal *colour*ing. As the hemoglobin nears its final breakdown the bruise will turn yellow. Healing contusions begin to turn green as the hemoglobin in the tissues begins to convert to other chemicals. This occurs due to the red blood cells being broken down and hemoglobin (and iron) being released into the surrounding tissues.Īs your contusion begins to heal, a variety of other *colour*s may appear. ![]() Over a few days the bruise may turn an even deeper purple *colour* or may even look black. Not long after the blood has leaked out of the injured capillaries, the blood loses its oxygen, and the blood becomes darker, which turns the skin *colour* blue or purple. Sometimes the red stage isn’t noticed, as the area of impact isn’t looked at immediately. Typically a new bruise will begin red, as fresh new blood is leaked into the surrounding tissues, which is rich in both oxygen and hemoglobin (a protein that contains iron). The *colour* of a bruise depends on how fresh the injury is, or its stage of healing. The classic bruise will likely make its way to the surface hours or days later, or the bruising may show up, as discussed above, farther away from the site of the trauma rather than right under the traumatized area. As mentioned above, the bleeding caused by trauma can be deep, and for this reason, the skin may not look bruised initially, but can feel tender. What should be noted, however, is that one may feel like an area is bruised, and yet there is no objective sight of it. Evidently the more force involved in the blow, also the bigger the potential contusion.įor most people, the feeling of a bruise need not be explained. The larger the object you run into, the bigger the potential contusion. The size of the bruise you incur depends on what actually caused your injury, as well as how much force was involved in the injury. It should also be noted that severe contusions on the abdomen or back could also injure the internal organs. Gravity carries the escaped blood to the lowest point of the limb, hence showing up in the hanging hand or foot. It is not uncommon to see bruising around your ankle after an injury or surgery to the hip or knee, or to see bruising in your hand after a shoulder injury. It should be noted that bruising could occur farther from an injury than you would think, as well. In more forceful traumas, like during a fall or getting hit by an object such as a sports stick or helmet, the bruising may not come out for a few hours or even a couple of days. If you simply pinch a bit of skin in a zipper, you may see the bruise develop quickly, within a few minutes or within the hour, as the injury is close to the surface. How quickly a bruise develops depends on how forceful the trauma is that causes the injury. When this occurs, injury occurs to the muscle fibers as well as the capillaries (which are small blood vessels) and blood leaks out of the injured cells into the surrounding areas beneath the skin. A contusion can result from a blow (or repetitive blows) or a significant strain to a specific part of your body, or can result from you hitting your body against a fixed object or the ground. ![]()
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