BACKGROUND : 55 years of age used to be the cutoff point when deciding between biceps tenotomy and tenodesis for treating biceps tendon pathologies. METHODS : Patients aged ≥18 years who had tendonitis in the long head of the biceps and were admitted for arthroscopic surgery were included. A questionnaire with a series of questions assessing patients' current symptoms, their concerns about their outcomes, and personal demographic information was introduced to the participants on the day before the surgery. The patients' preference toward tenotomy and tenodesis was assessed, and χ2 tests and logistic regressions were used to test the association with the categorical and ordinal variables, respectively. RESULTS : A total of 135 patients enrolled in the study, with 83 males and 52 females, the mean age of which was 56 years (range, 18-75 years). Of all patients, 86 (63.7%) preferred biceps tenodesis as opposed to tenotomy; meanwhile, there was no difference in preference toward tenodesis in each age- and gender-subgroup (range, 55.1% to 71.4%). The different subgroups had specific factors that were predictive of choosing either a tenotomy or tenodesis. In most subgroups, concerns about postoperative arm appearance and the so-called "Popeye" deformity due to tenotomy were factors predictive of choosing biceps tenodesis, whereas concern about longer rehabilitation due to tenodesis was the factor predictive of choosing biceps tenotomy. CONCLUSIONS : Biceps tenodesis is a more preferable choice for patients with biceps tendinopathies in all age and gender subgroups. Patients' concerns on postoperative arm appearance, "Popeye" deformity due to tenotomy, and longer rehabilitation due to tenodesis are the most important predictive factors.