I have the same problem,I was diagnosed when I was 15-16 with CTscan/MRI scan.The cause was most probably a bad fall when I was doing far jump.Pushups to strengthen the muscles around the spine and physiotherapy(I had to go twice a week for 6months then once per week for 6 months.Now I must attend short sessions once per year.) are the best counters I guess.You can do a surgery too,but it's not really recommended. (
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