What is the common cause of back pain?

1. Pulled muscle or tendon
2. Inflammation
3. Arthritis
4. Osteoporosis
5. Injured herniated and ruptured discs
6. Stress
7. Fibromyalgia

wrong sitting posture(slouching, back not straight(somtimes caused by putting leg up))

Idk

Your bad posture IS something to worry about - when you will be an 80 year old granny you will be a slouching fartbag - I warned you.

Wait, I went there about two years ago and it was said that I have gravel, it may be kidney stones.

Posture is the most common cause I think. But another common cause is from standing up for too long. My dad has a job that requires him to stand up all day and he has pretty bad back pain

Lack of exercise.

#17 I am basketballer

Stress

Old age too