Problem with Post in homepage

I’m having a problem with the post management in one of my webs, (it’s in Spanish) … The problem that I have is that in the homepage and category pages the posts appear in all their extension instead of just part of the text before the “Read More” button; I’ve been looking around but I cannot found what the problem is.

Thanks for the help!

There are two solution for that:

  1. Add them for each post manually by using read more tag like it is described here.

  2. Or replace <?php the_content(); ?> that you can find in content.php file with <?php the_excerpt(); ?> That way all your posts will be shortened by default.