Head traumas are one of the leading causes of death and temporary or permanent disability in the United States, explains MedicineNet.com. The effects of a head injury depend on how much damage the brain sustains and commonly include dizziness, headache and confusion.
A head injury can result in traumatic brain injury, or TBI. The most common TBI is a concussion. A concussion occurs when the head or body sustains a blow strong enough to throw the brain against the inside of the skull, explains WebMD. A concussion can cause loss of balance, nausea, foggy vision and memory loss, among other symptoms.
More serious TBIs include contusions or bruises on the brain, bleeding inside the brain, torsion or twisting of the brain, and skull fractures, according to MedicineNet.com. The short-term effects of serious TBIs can include loss of consciousness, vomiting, lethargy, speech difficulty, coma, and leaking of blood or cerebral spinal fluid from the ear or nose.
The long-term effects of brain injury can include permanent changes to the brain. TBIs can affects the way a person thinks, feels, acts, speaks and moves his body. In the United States, 2.4 million people experience a TBI each year, according to the Brain Injury Association of America.