That's the question Britney-watchers are asking and it seems that conspiracy theorists are all too willing to suggest all manner of un/likely answers.

Though Britney is regularly pictured carrying elder son, Sean Preston, to and from the dance studio, the singer has rarely been seen out with Jaden since his birth, causing over active imaginations to run wild.

One theory doing the rounds according to In Touch Weekly is that Jaden is being kept out of the public eye because he has Fetal Alcohol Syndrome caused by chronic drinking during pregnancy.

One insider claims, �Jayden is 8 months old and can�t focus on anyone or anything.  He�s slower than other babies and isn�t alert.�

Another adds, �They need to do more tests, but Kevin is worried Jayden has a serious problem.�

Britney�s rep denies Jayden has a problem, whilst another insider speculates that the rumors have been put out there by those who wish to portray Britney as a bad mother.

The mystery continues...