Internet-based Emotional Awareness and Expression Therapy for Somatic Symptom Disorder

Inclusion Criteria: * Age over 18 years * A total score ≥10 on the PHQ-15 * A diagnosis of SSD according to the DSM-5, i.e ≥1 of the 3 of: disproportionate thoughts about the somatic symtom, persistently high level of anxiety, or excessive time and energy devoted in regard to symptoms or health concerns * Symptom duration ≥6 months * Written statement from a medical professional that states that a medical evaluation has been conducted. Exclusion Criteria: * Alcohol or substance addiction * A diagnosis of a psychological condition that might require other treatment (e.g., psychosis, suicidality, etc) * Other severe medical condition that might require other treatment * Ongoing psychological intervention or psychotherapy that may interfere with the psychological treatment * Ongoing medical treatment that may interfere with the psychological treatment