No, a human has never self-fertilized. The medical literature confirms that there are no reported cases of self-fertilization in humans.
While the concept might be considered theoretically within the realm of science due to the presence of both ovarian and testicular tissues potentially determining ovulation and spermatogenesis, in reality, it has not been observed. Autofertilization has been reported in other mammals, but not in humans.
| Concept | Status in Humans | Status in Other Mammals |
|---|---|---|
| Self-Fertilization | No Reported Cases | Reported |
Therefore, the answer remains definitive: self-fertilization has not been documented in humans.
