MRI report for my(21 years old)spinal is here "subtle hyperintense signals on either side of sacroiliac joints on T2 weighted images which is hypointense on T1 weighted images. (R>L).What does it mean . I have 10 mnth baby.My delivery was normal.After delivery ,I cant stand for long time .Severe pain in lower back.Why it is?pls reply.

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