Este vs ese

[lauraashley]

¿Cuando se usa "ese" o "este"? Tengo problemas con "este".
Normalmente uso "este" o "esta" en casi todos los casos, pero algunas veces pienso que el uso es incierto.
Por ejemplo,
"Esta discriminación puede ser subconsciente."

¿Por qué no se usa "esa"?

Gracias

[AngelicaDeAlquezar]

The use of one pronoun or the other, for this kind of cases, reflects a subjective appreciation of the speaker: if they say "esta discriminación", they feel it closer to them; if they say "esa discriminación", they may not feel directly affected by such situation.

[Rusty]

It all depends on what you're trying to say. The two words are as different as 'that' and 'this'.

Esta discriminación ... = This discrimination ...
Esa discriminación ... = That discrimination ...

Your original title thread contained the word 'eso' instead of 'ese'. I changed it because it looks like your question is about the demonstrative adjectives. There are plural forms, as well, and there is a third demonstrative adjective that you didn't mention.
Here is a site that explains the demonstratives, both adjectives and pronouns.

[lauraashley]

Este sitio es muy útil. Gracias.