- Separation anxiety disorder is fear about being apart from the people you're most attached to that's out of step with your age and gets in the way of daily life.
- In kids it usually looks like school refusal, trouble sleeping alone, nightmares, and stomachaches before separations. In adults it usually centers on a partner or child, with constant checking in when apart.
- It isn't only a childhood condition. In a large U.S. survey, most adults with it first had symptoms as adults.
- CBT with gradual practice being apart is the core treatment. For kids, a parent-based program called SPACE worked as well as child CBT in a clinical trial.
Separation anxiety disorder: "Separation anxiety disorder is intense, ongoing fear about being apart from the people a person is most attached to. It goes beyond what fits the person's age and can interfere with daily life."
Canonical definition from Shrinktionary, the Shrink Network's plain-English mental health dictionary.
A six-year-old who sobs and grips the car door every school morning. A 34-year-old who can't settle at work until her husband texts that he got to the office, and who calls three more times before lunch. Different ages, different people in the middle of it, same underlying fear: something bad will happen while we're apart.
That fear is normal in small doses. Every parent has watched a toddler melt down at daycare drop-off, and most adults feel a pang when someone they love travels. Separation anxiety disorder is what happens when the fear stays too big for too long and starts running the day.
How it shows up in children
In children, the fear usually attaches to a parent or main caregiver. MedlinePlus lists the signs of severe separation anxiety as nightmares, reluctance to go to school or other places, reluctance to go to sleep without the caregiver nearby, and repeated physical complaints. That last one matters. A lot of kids with separation anxiety never say "I'm scared you'll die." They say "my stomach hurts" at 7:40 every weekday morning.
At home it often looks like shadowing: following a parent from room to room, refusing to be alone upstairs, needing someone in the room to fall asleep. School is the pressure point. A StatPearls review estimates that about 75 percent of children with the disorder show school refusal behavior, and it puts the average age of onset at around 6.
Population studies put it at roughly 4 percent of children, according to the same review.
How it shows up in adults
Adult separation anxiety is real, and it's more common than most people assume. Until DSM-5, the diagnosis required symptoms to start before age 18. That rule is gone now, and the StatPearls review notes that adults can receive a first diagnosis in adulthood.
In a U.S. national survey published in the American Journal of Psychiatry, lifetime prevalence was 4.1 percent for the childhood form and 6.6 percent for the adult form. About a third of childhood cases carried into adulthood, but 77.5 percent of adult cases started in adulthood. Most of the adults with it had never been treated for it, though many had been treated for something else. The survey used lay interviewers rather than clinicians, so treat the exact numbers as estimates.
In adults the attachment figure is usually a spouse, a partner, or a child. The pattern looks like this:
- Persistent worry that the person will get sick, get hurt, or die
- Calling or texting over and over when apart, and real distress when a reply is slow
- Trouble being home alone, or turning down travel, overnight stays, or a job that means time away
- Nightmares about losing the person
- Headaches, nausea, or a racing heart before a separation
For adults, symptoms typically last six months or more before the diagnosis fits. For children and teens the threshold is four weeks.
Normal clinginess versus the disorder
Separation distress is part of normal development. MedlinePlus describes it as a normal stage that's common from 8 to 14 months and usually ends around age 2. It can come back for a while during a stressful stretch, like a move, a new sibling, or a parent's hospital stay, and that's still normal.
What makes it a disorder is intensity, age, and cost. A four-year-old who cries for five minutes at preschool drop-off and then plays happily isn't the concern. A nine-year-old who's missed three weeks of school because mornings have become a two-hour standoff is. MedlinePlus advises calling your child's doctor if severe separation anxiety continues past age 2, and notes that when separation anxiety appears in adolescence it may signal an anxiety disorder.
Separation anxiety versus relationship worry
Adults sometimes ask whether this is just anxious attachment. There's overlap, but they're different things.
Anxious attachment is a relationship style. The fear is mostly about rejection: they're pulling away, they'll leave, I'm not enough. It tends to flare around conflict, silence, or mixed signals.
Separation anxiety disorder is about physical distance and danger. The fear is that something will happen to the person while you're apart. Someone with separation anxiety might feel secure in how much their partner loves them and still be unable to sleep the night he's on a work trip, because they keep picturing the car accident.
Constant checking in shows up in both, which is why they get confused. It's also a form of reassurance seeking, and like other reassurance, each text calms things for a few minutes and makes the next gap harder to tolerate.
It's also worth ruling out other explanations. Fear of being alone can come from panic disorder (fear of having an attack with no one around), from agoraphobia, or from a recent loss or trauma. A clinician will ask what, specifically, you're afraid will happen.
What treatment looks like
Therapy first
Cognitive behavioral therapy is the core treatment, and the active ingredient is practice. The idea is gradual, planned time apart that gets a little longer or a little harder each week, which is the same logic behind exposure therapy. For a child that might start with a parent sitting in the hallway during bedtime instead of on the bed. For an adult it might mean waiting 30 minutes before replying to "landed safely," then an hour.
A 2020 Cochrane review of 87 trials of CBT for anxiety disorders in children and teens found that 49.4 percent were in remission after CBT, compared with 17.8 percent on a waitlist or no treatment. The same review found no clear evidence that one format of CBT beats another, including group versus individual or with versus without parents, and it rated the evidence moderate to low quality. So CBT helps, and there's room to pick the version that fits your family.
Parents as the treatment
Parents of anxious kids tend to do something completely understandable: they accommodate. They stay until the child falls asleep, answer the fifth "are you coming back?", let the child skip the birthday party. Each accommodation eases the moment and keeps the fear in place.
SPACE (Supportive Parenting for Anxious Childhood Emotions) works only with parents. It teaches them to respond supportively while gradually cutting back on accommodation. In a randomized trial of 124 children aged 7 to 14 with anxiety disorders, SPACE was noninferior to CBT delivered to the child. That's useful when a child refuses to go to therapy, which, for a child who can't leave a parent's side, happens a lot. The trial looked at childhood anxiety disorders as a group rather than separation anxiety alone.
Medication
The largest trial here is CAMS, published in the New England Journal of Medicine. It enrolled 488 children aged 7 to 17 whose main diagnosis was separation anxiety disorder, generalized anxiety disorder, or social phobia. After 12 weeks, response rates were 80.7 percent with CBT plus sertraline, 59.7 percent with CBT alone, 54.9 percent with sertraline alone, and 23.7 percent with placebo. Suicidal thoughts weren't more frequent with sertraline than with placebo in that trial, and no child attempted suicide.
Two cautions. No medication has an FDA indication specifically for separation anxiety disorder, and all SSRIs and SNRIs carry an FDA boxed warning about suicidal thoughts and behavior in children and young adults, per the StatPearls review. Medication is usually considered for moderate to severe symptoms or when therapy alone hasn't been enough, with close follow-up. See pediatric anxiety for more on how SSRIs are used in kids.
The honest gap for adults
For adults, the evidence is thin. The 2006 survey authors called for research on adult treatments, and the adult-specific studies since then are small. In one clinic sample of adults whose anxiety hadn't responded to standard treatment, 37 of 46 had clinically significant separation anxiety, which suggests it's often missed. In practice, adults get the same tools that work for other anxiety disorders: CBT built around gradual separation, and an SSRI when symptoms are severe or other conditions are present. If you've been treated for panic or generalized anxiety and the fear of losing someone never budged, say so directly. It changes what the therapy should target.
When to get help
Reach out to a clinician if the fear has lasted four weeks or more in a child or teen, or months in an adult, and it's costing something real: missed school, missed work, a partner who feels monitored, a family schedule built around avoiding goodbyes. Your child's pediatrician or your own primary care doctor is a reasonable first stop. A child psychiatrist or psychologist who uses CBT is the next step if it doesn't ease.
If you or your child are having thoughts of suicide or self-harm, call or text 988 in the United States, or call 911 if someone is in immediate danger.
Related: Pediatric anxiety · Anxious attachment · Exposure therapy, explained
For the bigger picture on how attachment bonds form and why they shape how we handle distance, see attachment styles on Shrinkopedia. If checking in has become a loop you can't stop, the Reassurance Loop on shrinQ walks through it step by step.
Sources
- MedlinePlus: Separation anxiety in children
- StatPearls: Separation Anxiety Disorder (NCBI Bookshelf)
- Shear K, et al. Prevalence and correlates of estimated DSM-IV child and adult separation anxiety disorder in the National Comorbidity Survey Replication. Am J Psychiatry. 2006;163(6):1074-1083.
- James AC, et al. Cognitive behavioural therapy for anxiety disorders in children and adolescents. Cochrane Database Syst Rev. 2020;CD013162.
- Lebowitz ER, et al. Parent-based treatment as efficacious as cognitive-behavioral therapy for childhood anxiety: a randomized noninferiority study of Supportive Parenting for Anxious Childhood Emotions. J Am Acad Child Adolesc Psychiatry. 2020;59(3):362-372.
- Walkup JT, et al. Cognitive behavioral therapy, sertraline, or a combination in childhood anxiety. N Engl J Med. 2008;359(26):2753-2766.
- Milrod B, et al. Separation anxiety in anxiety disorders not responding to treatment. Compr Psychiatry. 2016;66:139-145.
For the clinical encyclopedia entry on this condition, see Shrinkopedia →