It can occur unilaterally or bilaterally.

It is usually unilateral but rarely may occur bilaterally.

The condition is commonly unilateral but can also occur bilaterally.

Anotia and Microtia may occur unilaterally or bilaterally, meaning one ear or both ears are affected.

Usually unilateral, congenital fourth nerve palsies can also occur bilaterally.

Like tremors, they are typically back and forth movements, and most commonly occur bilaterally.

It generally occurs bilaterally without significant side to side dimorphism.

This typically occurs bilaterally, but there are also exceptions in which one kidney may be notably smaller while the other kidney is normal sized.

In intracranial hypertension, papilledema most commonly occurs bilaterally.

These lesions can occur bilaterally and a familial pattern has been reported.