Understanding degenerative disc disease

My mother had a low back pain. Later I came to know that this is because of a degenerating disc disease. After a thorough discussion with our house physician I realized that although name sounds so, actually it is not necessarily a progressively threatening condition. In fact in the real sense it is not a disease. Actually the disc degenerates but not the symptom of pain. With time the pain improves. The degenerative disc issue is not about a disease but a condition that sometimes leads to pain and discomfort resulting from the damaged disc - a natural part of ageing.