Cancer is ruled by Moon, and Ketu is quite inimical towards it as per Vedic Astrology. Cancer is a water sign ruled by Moon, which represents emotions and feelings. Ketu in this position gives a negative personality to the native as it creates a lot of confusions. Such people struggle to understand their own emotions. They always think of the negative possibilities than positive. A sense of doubt pervades all their opinions and thoughts. Ketu is a shadow planet and in a way, it casts a shadow on the mind of the native and creates misunderstandings and obscurity.
People born with Ketu in Cancer always feel a sense of fear, doubt and sadness. Sometimes, these natives also develop some phobia. They have an instable and wavering mind. In fact, their mind is full of airy thoughts. They are also prone to gastric troubles. These people nonetheless are sympathetic to others. They have a religiously inclined mind and can touch extremes when it comes to spirituality. Due to their overly confusing emotional persona, they struggle to experience peace of mind. They are equipped with good management skills though.