Among men who undergo follicular unit extraction (FUE) hair transplantation at accredited centers, clinical studies consistently find high satisfaction: a PMC-indexed study of 152 patients reported 98% good or satisfactory results at 12 months, with only 1.97% classified as poor outcomes. A larger study of 875 male AGA patients found satisfaction with appearance rising by over 30 points on standardized scales post-operatively. The picture darkens at lower-quality clinics — ISHRS census data indicate 5.4% of patients seek repair surgery from a different physician due to prior dissatisfaction, and independent reports place density-related disappointment at 10—15% where donor supply is inadequate or technique substandard. A conservative central estimate of ~5% action regret sits between the clinical-study floor and the repair-surgery rate.
On the inaction side, the psychological literature is unambiguous: untreated androgenetic alopecia carries a substantial and persistent quality-of-life burden. A multinational European study of 729 men with AGA found that 62% believed hair loss could diminish self-esteem — with 43% citing lost attractiveness, 42% baldness fears and 21% depression — yet fewer than 10% were actively pursuing treatment. A 2024 mixed-methods survey found men with AGA scoring life satisfaction at 5.70 against a national norm of 7.38 — a gap that persists for years. No published survey directly asks untreated men whether they regret not having a hair transplant, so the inaction rate (25%) is a proxy anchored to severe-distress prevalence among non-treating men.
The Gilovich inaction-dominates pattern is directionally plausible here: the decision not to pursue transplantation leaves an open counterfactual (“what if I had done it when my pattern was stabilizing?”) that the mind can sustain indefinitely, while the decision to pursue surgery — if performed at a qualified center with realistic expectations — tends to close the counterfactual with a positive outcome. The main caveat is selection: surgery patients in clinical studies are pre-screened for candidacy, whereas psychosocial burden studies sample all men with AGA regardless of transplant eligibility. The ~20-point gap in proxied rates should be read as directional evidence of inaction dominance, not a precise regret differential.