Ketu in the 6th house in the sign of Cancer indicates that you may face challenges and obstacles in your daily routine, work-life, and health. You may suffer from anxiety and stress-related health issues due to overthinking and worrying about work-related matters.

However, Ketu's placement in this house also indicates that you have a strong sense of service and are compelled to help others. You may find fulfillment working in service-oriented fields such as healthcare, social work, or charity organizations.

Additionally, Ketu in Cancer can indicate a tendency towards being introverted and holding onto emotions. It is important for you to find healthy ways to express and release your emotions to avoid accumulated stress and potential health problems. Practicing meditation or talking to a therapist can be helpful in managing emotional unrest. 

Overall, the placement of Ketu in the 6th house encourages you to prioritize self-care and service to others while also addressing any emotional or health-related issues that may arise.

Ketu is in 6th house in Cancer