There are several online forums and discussion platforms that can be helpful for UPSC Medical Science Optional subject. These platforms provide a space for aspirants to connect, share resources, discuss topics, and seek guidance from experts. Below are some recommended forums and platforms for UPSC Medical Science Optional subject:

1. EduRev:
- EduRev is a comprehensive online learning platform that offers a wide range of study materials and resources for UPSC Medical Science Optional subject.
- It provides a dedicated section for UPSC preparation, including Medical Science Optional subject.
- Aspirants can find study notes, mock tests, previous year question papers, and discussion forums on EduRev.
- The platform also allows users to connect with fellow aspirants and discuss doubts or share insights.

2. Quora:
- Quora is a popular question-and-answer platform where users can ask questions and get answers from experts and experienced individuals.
- There are various topics and subtopics related to UPSC on Quora, including Medical Science Optional subject.
- Aspirants can search for specific questions or topics related to Medical Science Optional subject and find relevant answers from experts or individuals who have already cleared the exam.
- Quora also allows users to follow specific topics or individuals to stay updated with the latest discussions and insights.

3. UPSC Forums:
- There are several online forums dedicated to UPSC preparation where aspirants can find specific sections for Medical Science Optional subject.
- These forums provide a platform for aspirants to interact with each other, share resources, discuss strategies, and seek guidance from experienced mentors.
- Some popular UPSC forums include UPSC Forum on EduRev, UPSC Forum on ForumIAS, and UPSC Forum on ClearIAS.

4. Telegram Groups:
- Telegram is a messaging platform that allows users to create groups and channels for specific topics or interests.
- There are several Telegram groups dedicated to UPSC preparation, including Medical Science Optional subject.
- Aspirants can join these groups to connect with fellow aspirants, share study materials, discuss doubts, and stay updated with the latest information and resources.
- Some popular Telegram groups for UPSC Medical Science Optional subject include UPSC Medical Science Optional Group and UPSC Medical Science Optional Discussion Group.

Remember to always verify the credibility and reliability of the information and resources shared on these platforms. It's important to cross-check information and refer to trusted sources while preparing for the UPSC examination.