Ketu’s placement in the 3rd house in astrology is often regarded as challenging because it might impact communication, courage, and relationships with siblings. It may lead to difficulties in self-expression, communication issues, or a sense of detachment in interactions with siblings or neighbors. This placement could indicate a need for balance between the rational mind and spiritual pursuits, causing challenges in assertiveness and clarity in communication. However, the interpretation of Ketu’s effects in the 3rd house should consider the overall chart dynamics and individual circumstances for a comprehensive analysis.