Age: Lumbar disc herniation occurs in young adults. Sex: Most often seen in men, male to female ratio: 4-12:1, while prenatal, postnatal and menopause are the risk periods for lumbar disc herniation in women. Congenital factors: People with congenital lumbar spine dysplasia or deformity are more likely to develop. Body shape: Lumbar disc herniation is more likely to occur in those who are too fat or too thin. Daily work: heavy laborers or those with poor work posture are good for lumbar disc herniation. Living environment: frequent cold or humid environment, good incidence of lumbar disc herniation.