This document provides a literature review on medical chatbots using deep learning. It begins with an abstract discussing the importance of health and increasing illness rates. Section 1 introduces remote diagnosis and previous work on disease prediction and medical chatbots. Section 2 summarizes related works on botnet detection, occupational health chatbots, personality typing chatbots, response selection models, multi-platform chatbot frameworks, medical assistant chatbots, question answering systems, response generation models, knowledge graph chatbots, educational chatbots, intent classification with video, chatbot management processes, e-learning chatbots, and product information chatbots. The conclusion discusses building on past efforts for medical chatbot deployments.