Healthcare marketing combines conventional marketing concepts with industry-specific strategies to engage patients, healthcare professionals and the wider public. In today's digital era, search engine optimization (SEO) is essential in enhancing website visibility in search engine results and attracting new and existing patients. SEO has emerged as a crucial strategy incorporating techniques including keyword optimization, content marketing, local SEO, and mobile optimization to address sector-specific needs. Through a review of existing literature, case studies and research, this study sheds light on key SEO tactics in healthcare marketing that increase online visibility and boost patient satisfaction and engagement. The review further addresses the challenges and limitations in implementing SEO within the healthcare industry and suggests potential research directions in the future.