Vilka är orsakerna till Halvsidig ansiktsförtvining (Parry-Rombergs syndrom)?
Läs om troliga orsaker till Halvsidig ansiktsförtvining (Parry-Rombergs syndrom) angivna av dem som lever med just Halvsidig ansiktsförtvining (Parry-Rombergs syndrom)
Original
The cause is unknown. May theories are out there, like a bump to the head or a virus. Many don't believe it's hereditary. So little research has been done that the cause is still unclear.