New York residents may benefit from learning more about the delayed symptoms that can occur from injuries sustained in car crashes. Auto accidents cause emotional, mental and physical trauma, but the symptoms often manifest at different stages. The damage from physical injuries may not be apparent to the accident victim until several days after the incident. Whiplash injuries typically receive conservative care during the first six weeks, and then may require medical intervention if the pain continues thereafter.

Accident victims often suffer from severe headaches several days after the crash occurs. These types of headaches may be an indication of a more serious health condition, such as a concussion, neck and head injury or a blood clot on the brain. Researchers claim that back pain accounts for more than 50 percent of the injuries reported from rear-end accidents and nearly 75 percent of all side-impact collisions. Back injuries following a crash might be a symptom of damaged vertebrae, nerves, muscles or ligaments.

A person who experiences abdominal swelling or pain, fainting or dizziness hours or days after a crash may be suffering from internal bleeding. Accident victims often require a diagnosis and treatment from trained emergency medical staff. Post-traumatic stress disorder affects many accident victims, especially children, sometimes long after the collision occurs. Car crashes account for more than 30 percent of all traumatic brain injuries, which can impair cognition and cause personality changes that last for life.

People who suffer serious injuries resulting from a car accident that was caused by the negligence of another driver may want to consult with an attorney to determine how best to proceed. In some cases, it may be advisable to file a personal injury lawsuit that would seek damages from the responsible party for the losses that have been sustained.