Objectives <p>To examine the effects of dorsal onlay buccal mucosal graft (BMG) urethroplasty on sexual function by considering stricture parameters such as location, length and patient parameter such as age.</p> Materials and methods <p>This ambispective observational study was conducted at a tertiary referral center involving 42 sexually active men who underwent dorsal onlay BMG urethroplasty for short-segment distal bulbar urethral strictures (≤ 3&#xa0;cm) between August 2023 and January 2025. Patients were categorized according to age (&lt; 50 or ≥ 50 years) and stricture length (≤ 2&#xa0;cm / 2–3&#xa0;cm). Before the urethroplasty operation and at postoperative sixth- and twelfth-month follow-ups, the International Index of Erectile Function (IIEF-15) and Male Sexual Health Questionnaire–Ejaculatory Dysfunction Short Form (MSHQ-EjD-SF) were filled. Relevant domains of sexual function, erectile function, orgasmic function, sexual satisfaction, and ejaculatory function were assessed.</p> Results <p>The mean age of the cases was 46.8 ± 11.2 years. Mean erectile function (IIEF-EF) scores demonstrated a transient decline at 6 months (24.1 ± 3.6 vs. 21.3 ± 4.1; <i>p</i> = 0.004) but recovered to baseline levels by 12 months (23.7 ± 3.8; <i>p</i> = 0.58). Ejaculatory function scores (MSHQ-EjD-SF) remained stable throughout the follow-up period (<i>p</i> = 0.11). While patients aged ≥ 50 years had lower baseline sexual function scores than younger patients (<i>p</i> = 0.01), they exhibited similar recovery patterns. Stricture length &gt; 2&#xa0;cm did not significantly predict postoperative sexual dysfunction (<i>p</i> &gt; 0.05).</p> Conclusion <p>Our study suggests that dorsal onlay BMG urethroplasty has no significant long-term deterioration in erectile function, ejaculatory function, and general sexual satisfaction was observed. However, transient decline in erectile function may occur in the early postoperative period.</p>