A muscle gets hyperextended or has the blood flow temporarily disrupted, and pain is the inevitable result. It happens every single time.
Muscle strain is not, of course, the only thing that can cause back pain.
Injury can most certainly cause back pain and the fact is that the injury doesn’t even have to be directly to the back.
If your leg is hurt, you will favor it as you walk, which means that you aren’t walking straight. When you don’t walk straight, your spine is out of alignment, and pain will most assuredly follow.
Injury can cover a very broad range of events. A sudden jolt can cause back injury and thus back pain. A hard blow or a fall can do the same. Falls are often the cause of back pain for older adults.
Injuries that occur when people are engaging in sports, especially amateur sports, are often the cause of back injury and back pain.
Any kind of unexpected twisting motion can bring on back pain, as well.
There are many diseases that manifest themselves in the form of back pain. Kidney disease is probably the one that is most recognized, but it is
most certainly not the only one.
Heart disease can very often cause lower back pain, and so can gall bladder disease.
The body will actually take care of a simple muscle strain without any help, and there are many products available over-the-counter to help with the pain until it does.
If you know that your back pain has been caused by a simple muscle strain, you don’t need to worry about it.
If, on the other hand, you cannot attribute your back pain to a simple and minor injury or muscle strain, then you should see your doctor.