S1 refers to the first sacral vertebra of the human body, so S1 cryptoschisis refers to occult spina bifida of the first sacral vertebra. The first sacral spina bifida is usually congenital and occurs when the human embryo has incomplete development of the sacral spine due to developmental and nutritional problems. Under normal circumstances, there is no harm to the human body, and there will not even be any uncomfortable symptoms, only abnormalities will be shown under the X-ray film, and treatment is generally not required. However, patients with first sacral cryptoschisis will be more prone to lumbar pain and lumbago than others if they have poor living habits and lumbar muscle strain, so patients with first sacral cryptoschisis should strengthen the exercise of the lumbar region and the protection of the lumbar region. You can exercise your waist by swimming, and you should also pay attention to keeping your waist warm in general.