nuclear lobes in lymphocytes

[sontag]

Why do the different kinds of
lymphocytes have different numbers of nuclear lobes?
Why do nuclei have lobes in the first place?

[KLscilevothma]

Lymphocytes do not have nuclear lobes. They only have one dense nucleus.

I think you mean some granulocytes like neutrophils. They have segmented nucleus. The more lobes a neutrophil's nucleus contains, the "older" it is. In other words, age of neutrophils are related to segments of their nucleus. Usually they have no more than 5 lobes. Moreover, eosinophils have a bilobed nucleus.

[sontag]

Why does ageing cause "lobing?"