There is no denying that teaching is a noble profession because it broadens our knowledge, nurtures our souls and betters our lives. However, nowadays, the number of people who choose being teachers as their career, especially in secondary schools, is decreasing in many countries step by step. The purposes of this essay are to discuss the main reasons behind this phenomenon as well as to propose some solutions to remedy the real situation. To begin with, salaries paid to teachers are relatively low compared to other occupations. Needless to say, this will put a great impact on the career decisions of high-school students before they take the University entrance exams. More specifically, they may decide to secure a place in an university from which after graduating, they can apply for high-paid jobs. As a result, pedagogics will be easily ignored. The fact that in recent years, more and more students want to study at universities of economics in Vietnam is a typical example of this reality. Perhaps they do not take into account other factors when considering a career choice, but the first thing always comes into their minds is salary. Obviously, an auditor, an accountant, or a financial consultants will have higher income than a teacher. Therefore, increasing wages of this occupation may be a possible solution, so that students will have promotion to choose to become teachers in their future. Another reason is that some people cannot stand bad behaviors of pupils towards them. Today, pupils do not attach much importance to teacher’s advice and do not respect them as they did in the past. Most students say that the only duty of teachers is to teach them and they do not have right to punish them. They base their arguments on the reason that their parents pay money for teachers. Therefore, they tend to behave in a rude manner, even offend teachers when being scolded or punished. It can be said that secondary pupils are the most difficult to manage since they are not as obedient as grade-schoolers and are not as mature as high-school students. When I was in grade 8, one time my English teacher decided not to teach anymore because the class made a noise. Then some of my classmates told her directly that her teaching method was so boring that they did not want to study. As a consequence, she cried a lot and the monitor had to apologize to her.That’s why many people do not want to work as a teacher, especially in secondary school. The solution for this problem will need the cooperation of parents. They are the closest to pupils and they have to teach their children how to behave morally towards not only teachers but also the adults. In conclusion, explanations for the decrease in the number of teachers includes low salaries and disobedience of pupils. In order to resolve this problem, governments should increase teachers’ salaries. Moreover, parents should be more responsible for educating their kids, instead of depending totally on teachers and blaming them for the debauch of the children. By these ways, I believe the lack of teachers in the future can be reduced.