Wilson-Turner syndrome (WTS) is a very rare X-linked multisystem genetic disease characterized by intellectual disability, truncal obesity, gynecomastia, hypogonadism, dysmorphic facial features, and short stature.

Height of the vermilion of the upper lip in the midline more than 2 SD below the mean. Alternatively, an apparently reduced height of the vermilion of the upper lip in the frontal view (subjective).