Raul Rosas Jr. has spoken publicly about being born with a rare genetic condition called Pallister–Killian syndrome (often shortened to PKS), which affects physical development and facial features. This is what many fans online are referring to when they ask “what condition does Raul Rosas Jr have.”

What Pallister–Killian syndrome is

Pallister–Killian syndrome is a very rare chromosomal disorder caused by an extra piece of chromosome 12, which can lead to distinctive facial features, developmental differences, and sometimes muscle and skeletal issues. In Rosas Jr.’s case, the condition contributes to his unusual facial appearance, which has become a frequent topic of online discussion, but it has not stopped him from competing at the highest level in MMA.

Health, injuries, and current status

Aside from PKS, Rosas Jr.’s recent health news has mostly involved normal fight-related issues like illness and injuries rather than any new chronic condition.

  • He withdrew from UFC Mexico City because he was sick with dizziness, feeling light‑headed, and a cough on fight day.
  • He also had a rib injury in 2025 that forced him out of a scheduled fight against Rob Font, but he later confirmed he had recovered and was healthy again.

Despite the challenges, he continues to frame himself as fully ready to compete, focusing on staying injury‑free and climbing the bantamweight rankings.

TL;DR: Raul Rosas Jr. has a rare genetic condition called Pallister–Killian syndrome, which affects his appearance but has not prevented him from building a successful UFC career; his recent absences were due mainly to short‑term illness and a rib injury, not a new long‑term disease.

Information gathered from public forums or data available on the internet and portrayed here.