Follicular Unit Excision (FUE) is the most widely used hair transplant technique for its minimally invasive approach, quick recovery and natural appearance. A literature review from the PubMed and Embase databases up to September 2025 analyzed the complications of FUE including hypopigmentation, hypertrophic scars, epithelial cysts, and donor site exhaustion. Necrosis, folliculitis, persistent perifollicular erythema, discharge, and unnatural results occur in the recipient area. Less common complications include inflammatory, autoimmune reactions or atypical infections. The development of complications is influenced by patient factors such as comorbidities, smoking or medication, and technical variables such as perforation design, graft manipulation, follicle density and ischemia time. Risk reduction strategies include evidence-based practices to optimize graft survival. Careful patient selection, precise technique, and standardized postoperative care reduce the rate of complications, which are rare but can have significant consequences.