Help on this phrase, "me urge hacerlo"
I am a beginning student of Spanish. I don't quite understand sentence structure. I urgently need to do it, why is "urge" used rather than the first-person singlular "urgo," since the translation is " I need ...). Also, why would the sentence start with "Me" rather than "Yo?" Why in the example I provided is "Me" at the start of the sentence? Thank you.
7 Answers
It's urjo.
The verb urgir means to be urgent or to urge. Since you cannot be urgent, if you were the subject (urjo) you would be urging somebody to do something (te urjo a estudiar). In the phrase me urge", something else is urgent and you are the indirect object.
Think of it as something like "I am pressed to do it."
Just something funny to support Lorenzo's answer, if you wrote, "me urjo hacerlo" you would be saying, "I urge myself to do it". In result, people would probably give you a funny look and say, "felicidades amigo" meaning, "congrats friend". 
I don't know this phrase well in particular but it is probably like gustarse or encantarse ... I like the food = me gusta la comida = the food pleases me. The food is the noun and "me" is the indirect object.
Try thinking of this expression, in English, as:
"It is urgent for me to do it."
Another similar and common way of using urgir is:
Urge que, as in
Urge que lo haga, It is urgent that I do it.
Sometimes, in spanish, there are exceptions, even though I am a beginner too, i hear all of my cuban and mexican friends use me insted of yo sometimes. hopes it helps!
