PTSD affects about 6% of people in the U.S.  Symptoms associated with PTSD include:
- Reexperiencing the traumatic event through dreams and nightmares, vivid or recurring memories, or actual flashbacks that feel like reliving the event. Flashbacks are especially common among combat veterans, who may feel like they are physically and emotionally still in a war situation or other danger.
- Avoidance behaviors, such as avoiding people or places that act as reminders of a troubling event. Avoidance behaviors can prevent people with PTSD from working or maintaining relationships with co-workers, family and friends.
- Negative changes in mood, such as irritability, feelings of hopelessness or depression. “Having post-traumatic stress disorder is stressful on the body. It’s very tiring for your mind to be so active and on alert all the time — to feel like something terrible is about to happen,” says Dr. Drummond. This can promote depression and feelings of detachment from friends, family and activities you usually enjoy. It can also lead to memory problems, because your brain is trying to process the events and may struggle to take in new information.
- Changes in physical or emotional reactions, including an increased startle reflex. You may find you are more frightened or reactive to ordinary events, like a door slamming. These responses feel much more physical than emotional, Dr. Drummond says, and may stem from changes in brain chemistry.
People with PTSD may experience any combination of these effects, Dr. Drummond explains: “PTSD can look like any of these symptoms, which also occur in people who do not have PTSD. Some people only experience nightmares, others only the increased startle reflex or mood reactivity or anxiety.”
Any type of trauma  or event that someone experiences as life-threatening can lead to PTSD. Repeated exposure to traumatic events puts some people at higher risk for PTSD. People who serve or have served in the military or as first responders — such as police, firefighters and emergency medical technicians — are most at risk because of their repeated exposure to traumatic events. However, anyone can experience symptoms of PTSD in response to child abuse, sexual trauma or other incidents.
How can PTSD be prevented?
Some people respond to stress with irritability or increased crying spells. Those responses don’t necessarily indicate PTSD, but ordinary stress responses that can help relieve pressure. In fact, understanding your stress response can help you manage your stress more effectively and contribute to preventing PTSD, Dr. Drummond says.
People who have a history of depression or anxiety are more likely to develop PTSD in response to a traumatic event. “Some of that has to do with body chemistry and the way that your body manages stress,” he says. “Two people can have identical experiences and have a very different response emotionally.” Some of that is unpredictable, he adds. “Other people may have been through the same thing as you and are doing fine, but you should not feel guilty or less than if you develop symptoms of PTSD.”
If you have experienced a traumatic event or a series of events, seeking support sooner rather than later can help prevent PTSD. “If you are experiencing a stressful life event, it’s important to reach out and get help. If you can engage in therapy or process this difficult event, you can actually prevent PTSD from developing,” Dr. Drummond explains.
PTSD treatment is not “one-size-fits-all”
If you develop PTSD, it’s not a sign of weakness or something to be ashamed of, Dr. Drummond says. But it is a reason to seek out effective treatment.
“You may feel you are in a constant loop of negativity or feeling that something bad is going to happen,” he says. If symptoms make it difficult to go to work or engage with people, check in with your primary care doctor or make an appointment with a therapist or psychiatrist. If you have an Employee Assistance Program at your job, that’s often an excellent place to seek help. The Veterans Administration has extensive resources for active military members and veterans concerned about PTSD. Anyone experiencing suicidal thoughts or thoughts of harming themselves or someone else, should go immediately to the emergency room or call 911 or the National Suicide Prevention Hotline .
Medication can act as one part of a larger plan to address symptoms, such as the ones associated with anxiety. Treatment for PTSD  usually involves psychotherapy, medication or a combination of both. A special type of eye movement therapy called Eye Movement Desensitization and Reprocessing  may also help relieve PTSD symptoms. “Those who have experienced physical or sexual trauma many times are better helped by psychotherapy to help them understand and unpack their own emotional response,” Dr. Drummond says. In some cases, group therapy may be more effective than individual therapy.
“When I think of different types of PTSD, I think of the different ways that individuals might respond to treatment,” Dr. Drummond says. “Treatment is not one-size-fits-all.” The important message, Dr. Drummond emphasizes, is that PTSD is both preventable and treatable.
“There is help available,” he says. Find more information about mental health resources from our larger health network, HCA Healthcare.