Objective: The present study aimed to investigate theincidence of lower urinary tract symptoms, overactive bladder (OAB)syndrome, and erectile dysfunction (ED) in chronic obstructive pulmonarydisease (COPD) patients. Material and Methods: The studyincluded a total of 707 male patients with COPD. The Overactive BladderQuestionnaire, the International Prostate Symptom Score (IPSS),and the International Index of Erectile Function (IIEF) were administeredto each patient. Additionally, each patient was also queried as to whetherthey had any loss of libido. Pulmonary examination was performedbased on physical examination findings, spirometric measurements, andarterial blood gas analyses. Results: Mean age of the patients was52.5±10.6 years and a significant relationship was found between patientage and ED and lower urinary tract symptoms (p=0.01). Mean body massindex (BMI) was 33.2±5.6 kg/m2. A significant relationship was foundbetween BMI >35 kg/m2 and ED (p=0.042). Mean OAVB-V8 score was7.71±4.44. Mean IPSS score was 10.3±5.7 and mean IIEF score wasfound to be 11.6±6.44. A significant relationship was established betweensevere and most severe COPD and lower urinary tract symptoms includingurgency and urge incontinence (p=0.035 and p=0.021, respectively).A significant relationship was detected between COPD severity and ED(p=0.001). Moreover, the incidence of ED was higher in patients withoxygen saturation of ≤90 (p=0.044). Normal libido was reported by 91%of the patients. Conclusion: Our results indicated that the prevalence ofED is increased in patients with severe and most severe COPD and thatthe prevalence of lower urinary tract symptoms (especially urge incontinenceand urgency) is higher in COPD patients.