An individual with SAD will persistently and excessively demonstrate at least three of the following symptoms for an extended period, usually six months or longer:
- Distress when anticipating or experiencing separation from home or attachment figure(s)
- Worry about losing attachment figure(s) or about possible harm coming to them (for example, from illness, disasters, or death)
- Worry about experiencing a negative life event that would separate the individual from attachment figure(s) (such as being kidnapped or becoming lost)
- Reluctance to leave the home or travel alone because of fears of separation
- Reluctance to be alone, including at home
- Reluctance to sleep away from home, or to sleep at home without an attachment figure close by
- Nightmares involving themes of separation
- Physical symptoms such as headaches, gastrointestinal symptoms (nausea, vomiting), or cardiovascular symptoms (dizziness; lightheadedness) when separated from attachment figures
An individual with separation anxiety disorder may experience panic attacks when separated from attachment figures, although this is not required for the diagnosis.