One of the most consequential misconceptions about hair transplantation is that the procedure provides lasting results without further treatment. The transplanted follicles themselves are largely permanent, they came from donor areas genetically resistant to androgenetic alopecia and retain that resistance after transplantation. But the native non-transplanted hairs surrounding them continue to progress according to the patient's underlying disease trajectory.

The result of failing to maintain medical therapy post-transplant is the gradual unveiling of further loss around the transplanted areas, sometimes producing a 'island' or 'donut' appearance where transplanted hair persists while surrounding native hair recedes further. Patients in their 20s and 30s who undergo transplant without finasteride or similar medical maintenance often need additional procedures within 5–10 years to address progression.

Standard post-transplant medical therapy recommendations include continued finasteride (or alternatives like dutasteride for higher efficacy), topical minoxidil for ongoing follicle support, and management of any inflammatory scalp conditions. For patients unable to tolerate finasteride, low-dose oral minoxidil has emerged as a reasonable alternative for ongoing maintenance. Patients should commit to this long-term framework before undergoing transplantation, recognising that the surgical result depends partly on continued medical management for optimal long-term outcome.