She graduated from Cambridge University with the Surgery Prize and gained a PhD in Anatomy from University College London. Aina trained in plastic surgery on the Pan Thames Training Programme, London. She did Craniofacial Fellowships at New York University Langone Medical Center, Chelsea and Westminster Hospital and Great Ormond Street Hospital, and a Fellowship in Breast Surgery at the Royal Marsden Hospital. She did the American Society for Aesthetic Plastic Surgery International Fellowship.