Toxoplasmosis most often affects fetuses, young infants, and people with damaged immune systems. Toxoplasmosis: This infection is caused by a parasite.It is most often caused by a group of viruses and is sometimes spread through insect bites. Encephalitis: This is an infection in which the brain itself becomes inflamed.It can be caused by bacteria, viruses, other organisms, and some medications. Meningitis: This is an infection in which the covering of the brain becomes inflamed.Infections: Illness caused by an infectious organism such as a virus or bacterium can lead to brain swelling.Hemorrhages in the brain can also be due to certain medications and unknown malformations present from birth. High blood pressure is thought to be the most frequent cause of this kind of stroke. As blood leaks and the body responds, pressure builds inside the brain. Hemorrhagic strokes are the most common type of stroke. They occur when blood vessels anywhere in the brain rupture. Hemorrhagic strokes: Hemorrhage refers to blood leaking from a blood vessel in the brain (intracerebral).As a result, brain cells start to die and swelling occurs. The brain is unable to receive the blood - and oxygen - it needs to function. Ischemic strokes: Ischemic stroke is the most common type of stroke and is caused by a blood clot or blockage in or near the brain.Too much swelling may prevent fluids from leaving the brain. The body's response to the injury may also increase swelling.
In addition, broken pieces of bone can rupture blood vessels in any part of the head. The initial injury can cause brain tissue to swell. The most common causes of TBI include falls, vehicle crashes, being hit with or crashing into an object, and assaults. Both the physical contact itself and the quick acceleration and deceleration of the head can cause the injury. In TBI, a sudden event damages the brain. Traumatic brain injury (TBI): A TBI is also called a head injury, brain injury, or acquired brain injury.The following list explains different ways the brain can swell: Injury, other health problems, infections, tumors, and even high altitudes - any of these problems can cause brain swelling to occur. Damage or death of brain cells may result. Swelling can also block other fluids from leaving your brain, making the swelling even worse. This pressure can prevent blood from flowing to your brain, which deprives it of the oxygen it needs to function. That's known as intracranial pressure, or ICP. Wherever it occurs, brain swelling increases pressure inside the skull. Swelling can occur in specific locations or throughout the brain. Yet, the thick, bony skull that snugly protects this vital organ provides little room for the brain to swell. As your body's master control system, the brain is critical to overall function. It's also usually more difficult to treat. Brain swelling, though, can quickly cause serious problems - including death. Your brain can also swell as a result of injury, illness, or other reasons. Usually, swelling happens quickly and is simple to treat with some combination of rest, ice, elevation, medication, or removal of excess fluid. Swelling - also called edema - is the body's response to many types of injury. If you bump your knee, it's likely to swell.
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