Anyone who has fallen or bumped against something has experienced a bruise. Most bruises are minor injuries that heal within a few days. Only severe bruising over a large area of the body requires medical treatment.
A bruise occurs when blood vessels beneath the skin are broken. The broken blood vessels lead to a minor form of internal bleeding that does not need to be treated. The color of the initial bruise depends on how many vessels underneath the surface are broken. If a lot vessels in an are rupture, the bruise will have a largely purple discoloration that will is known colloquially as a black and blue mark.Bruise, like any other injury, will heal over time. In the example of the black and blue mark, the bruise goes from a purple look to a more black and bluish look after a day or two. As the healing process continues, the bruise will go into brown, green, and red before the skin returns to its normal color.
A sprain is related to a bruise, except it occurs in the ligaments rather than on the surface of the skin. A sprain can make it difficult to walk or move the arm. Treatment for a sprain generally requires the immobilization of the affected area. A patient who comes into an emergency room with a sprain will have the affected area wrapped and immobilized. Treatment requires rest of the affected area. A slow healing bruise or a sprain may indicate a sign of a more serious problem. Diabetes patients may not recover from a bruise within the normal amount of times. Sometimes a slow recovery from a bruise is an indication that a patient suffers from a more serious problem. Normal bruises that last more than a month may require medical attention.