The typical human anatomy includes one tongue. However, the appearance of having two tongues can occur in rare cases.
Cases of Apparent or Actual "Double Tongue"
While humans are typically born with a single tongue, there are extremely rare instances where a condition might present as a "double tongue." The references provide insight into these situations:
- Ectopic Salivary Tissue: Sometimes, unusual placement of salivary gland tissue can appear like a second tongue.
- Oral-Facial-Digital Syndrome (OFDS): This genetic disorder can, in very rare instances, manifest as an actual split or duplicated tongue.
- Congenital Abnormality: A duplicated tongue can occur as a birth defect in otherwise healthy individuals, though this is exceedingly rare.
In summary, while not the norm, the appearance or presence of what could be described as a "double tongue" is possible due to specific, rare medical conditions.