What causes adult (male) transient small bowel intussusception , multiple severe episodes during 3 years time frame ?

Uncertain cause: It's unclear why some people are prone to episodes of intussusception. It's possible that a low fiber diet is promoting dysmotility or making it difficult for the colon to transit stool. Consider increasing the fiber content of your diet by eating a pound of vegetables and fruits a day and transitioning some/most of your proteins to beans and grains, for longevity and improved colon health.