A blood clot is an unseen clump of blood that has developed in deeper tissue or within a blood artery. A bruise frequently starts while the outer layer of skin is still intact, and it causes the color of the visible layers of skin to alter. As the bruise develops, red blood cells break down causing the blue-black pigment called heme to be released. This changes the color of the bruise from red to purple or black. As the bruise heals, new skin replaces the damaged layer, returning the color to its original state.
As well as being painful, blood clots can also cause problems such as loss of movement or function, paralysis, and even death. Blood clots may also lead to other conditions, such as heart disease or stroke. It is important to prevent blood clots because they can be serious or even life-threatening.
You may be able to see blood clots if you look at your skin under a microscope. Your doctor may also be able to detect blood clots using imaging tests. Do not worry about seeing blood clots for someone else. Most people do not notice blood clots until there is a problem with the lungs or brain, so anyone can develop blood clots without knowing it.
Blood clots can come from any part of the body, but they most commonly occur in the legs after surgery, especially abdominal surgery.
Blood clots are semisolid blood lumps. They occur similarly to bruises when a blood vessel is damaged by trauma such as a blunt blow, a cut, or an excess of lipids in the blood. However, while bruises fade away after a few days, blood clots can remain for several months or longer.
Clots can be seen under the microscope as irregular masses of red and white blood cells with sticky bits of protein and platelets mixed in. They can also be seen as large pieces of tissue that have clotted up after death. Clots can form in different parts of the body; however, they most often collect in the legs between the deep veins and their outlet, called the foot, or in the lungs after a heart attack.
In medicine, it is important to differentiate blood clots that may require treatment from those that can be left alone. For example, if a blood clot causes pain when moving it around, it may need to be removed by surgery. On the other hand, if you break your leg and it starts to heal without any problems, then there is no need for further treatment except for preventing infections.
It is difficult to diagnose blood clots without using some kind of tool. Usually, your doctor will ask about your history and do a physical examination of your body, including looking at your legs.
A clot is a sticky mass that develops when blood thins or dries up. When blood clots, it thickens and creates a lump. The blood in the patient's body failed to clot. This can be because of decreased blood flow, especially to areas of the brain where many small blood vessels cluster together (such as in the cerebral cortex). It can also be caused by abnormal proteins that may be present in the blood. These proteins can cause blood cells to stick together in a way that prevents more normal blood cells from being able to enter the area of damage.
Without treatment, patients with acute stroke will usually die within one month after the onset of symptoms. Treatment may include medications to reduce the risk of further seizures or strokes, physical therapy, or surgery. Recovery depends on how much of the brain was damaged at first by the stroke and what type of rehabilitation therapy is used.
Stroke is the leading cause of long-term disability in the United States. Approximately 130,000 people suffer a new or recurrent stroke every year. Of these, 60% have some degree of disability and 20% are dead. As we know, mortality due to stroke is high because many survivors are not treated properly. Many recover some function but never regain everything they lost. Others continue to suffer permanent damage.