We had a little scare last night. Summer’s knuckles and knees turned black and blue. She wasn’t in any pain or discomfort. But we were concerned so we called our health care advice line. Despite the lack of symptoms, we took her to see the doctor after hours. The doctor’s diagnosis? New jeans! Yeah. Took a medical doctor who went to med school to diagnose the cause of the discoloring. dye from new jeans. Ever felt really foolish? I’m sure that doctor will be telling stories about her patient suffering from a rare disease called New Jeans Syndrome (NJS).