Tag: Rare disorders

While a single rare disorder may affect only a small population, collectively, these conditions impact hundreds of millions of people worldwide. A precise number for **how many rare disorders are there** is complex, with estimates varying significantly due to different definitions and ongoing discoveries.

Trimethylaminuria (TMAU), often called 'fish odor syndrome,' is a metabolic disorder where the body cannot properly break down a foul-smelling chemical called trimethylamine. For those asking, "Is there a disease where you always smell bad?", this rare genetic condition provides a definitive and often life-altering answer.