Recommendation 6.1 After acute uncomplicated diverticulitis (CDD 1b), elective sigmoid resection should not be performed in symptom‐free patients, regardless of their medical history.	Evidence level 2, recommendation grade B, strong consensus
Recommendation 6.2 In patients with acute uncomplicated diverticulitis CDD 1b with persistent symptoms (“smouldering diverticulitis”), elective sigmoid resection can lead to an improvement in quality of life.	Evidence level 2, recommendation grade 0, strong consensus
Statement 6.3 To distinguish between micro and macro abscesses, a threshold value of approximately 3 cm can be applied, since this reflects the possibility of interventional drainage and the risk of recurrence correlates with the size of the abscess.	Evidence level 3, recommendation grade 0, consensus
Recommendation 6.4 Patients with acute diverticulitis with microabscess (CDD type 2a) should be hospitalised and treated with antibiotics. There is no indication for elective surgery after successful conservative therapy.	Evidence level 3, recommendation grade B, strong consensus
Recommendation 6.5 Larger retroperitoneal or paracolic abscesses (>3 cm) can be interventionally drained (sonography, CT).	Evidence level 3, recommendation grade 0, strong consensus