After graduating in MBBS from the University of Peshawar, he attended University of Birmingham Medical School from which he graduated in Masters of Surgery with honors (Peter London Gold Medal Award). He is also Fellow of Royal College of Surgeons, Edinburgh. He completed his residency training in General surgery, Orthopedic Surgery and trauma surgery; followed by three years fellowship in trauma. He has a specialized training in surgery of trauma from Military Hospital Rawalpindi, Accident Hospital Birmingham and Liverpool Hospital, Sydney. He developed special interest in Orthopedic Cosmetology and Reconstructive Surgery. Dr. Janjua is the Director for Height Increase by Limb Lengthening Surgery Clinic. Chief of the Pakistan Orthopedic and Cosmetology Center and Bone Health Center. He has presented his clinical and research works at national and international medical meetings and has authored numerous articles in medical journals and a book on trauma.