A Bleeding Heart
Un Alma Caritativa
A very compassionate person who feels pity for all those who are suffering. A soft-hearted or tender-hearted person.
This idiom was coined in America in the 20th century and it began to be used by those who were against charities and then in a derogative way started to refer to those who participated in helping-people-in-need campaigns as bleeding hearts, stressing the fact that those who care for others have a heart which bleeds.