When you're born into the human body, it is inevitable that suffering comes with the body. Pain is given as a warning that something is wrong. Pain also can be a sign that growth is taking place. Our Savior Jesus suffered because of the wrong that humanity had done, the sin, and let us know that if we follow after him then there will be suffering that happens to us in our lives. When we learn how to deal with suffering with a wholesome attitude then it can help us to grow spiritually and mentally and it can help us to get better insight to counsel and help other people going through suffering. So, suffering is a good thing for us as Christians - it can help us to be better able to deal with the things in our own lives but also in the lives of those that are around us.
