Ketu in 5th house in Astrology denies children or gives them at a very late age with lots of struggle; usually, a girl will be the first and the only child. Ketu blocks creativity in this house unless it’s in conjunction with Venus or Moon. However, Ketu in 5th house in Vedic Astrology gives good education since it increases the person's concentration in 5th house, which is vital for academic studies.
The 5th House represents children, fun, creativity, past life karma, education, speculative business, entertainment, ancient knowledge, media, writing, and the stock market. I say media and writing because 5th house is 3rd from the 3rd house, which becomes the 2nd choice for looking at an individual's creativity.
The first step away from home is school. The fifth house represents education and learning, intelligence, and mental inclinations. The liver, stomach, and spleen are next after the chest. Note that the division between the4th and 5th house corresponds to the diaphragm that separates the chest from the space below. The liver is a brilliant and complex organ that regulates a. lot of chemical processes in the body. The liver is also able to re-grow itself if parts are removed. This supports the fifth house signification of intelligence and adds creativity. Simha (Leo) is the corresponding sign and adds to intellect's signification (Surya represents the brain).
Ketu is the south node of the Moon and the rest of the body of Rahu. This is a headless body representing separation, isolation, and the material world's abandonment. This shadow planet represents spirituality, nothingness, and goals that we already achieved in past lives. In this life, we only rely on those things as a last resort.
Ketu in Astrology is also an unsteady and sometimes treacherous force. Still, its qualities are more of an abstract, inward nature, in contrast to Rahu, who is more concerned with outward, worldly matters. Ketucan bring hindrance and obstacles in the physical realm of life but indicate sparks of intelligence and the mind's brilliance. The above significations are extremely important to know by heart. You should memorize them and use them often to remind yourself of the essential nature of the Grahas.
Note: The degree of auspiciousness and inauspiciousness will depend upon a complete analysis of the horoscope (birth-chart).