Objective : Lower back pain is the most common pain in our life, and Heniated Intervetebral Disk(HIVD) of L-spine is one of the most common disease that cause lower back pain. This study is designed to invertigate the general distributions for HIVD patients. Subjects and Methods : The 193 patients who had taken diagnosis of HIVD by L-spine CT or L-spine MRI and admitted to Cheonan oriental medical hospital in Daejon university from January 2008 to December 2009 were reviewed. They were analyzed according to sex, age, prevalent duration, and causing factor. They were treated with acupuncture, herbal medicine and physical therapy. And treatment efficacy was evaluated according to each distribution respectively. Result 1. Among 193 patients, males were more than females in the ratio of 1.47:1. 2. According to age, 33.2% patients were thirties. 3. According to causing factor, 39.9% patients with unknown origin were most. 4. According to prevalent duration, 49.7% patients were on acute stage and 20.2% patients were on 6-10days. 5. According to HIVD types, patients with protruded disc type and with lesion of L4-5 were most common respectively 45.1%, 63.3%. 6. When effective rates were analyzed according to each distribution, patients on twenties, acute stage and with extruded disc type were showed good effective rates, respectively 92.7%, 90.6%, 89.3%. Conclusion: Total effect rate was 87.5%. Prevalence of HIVD is the highest in the age of 30 to 40, L4-5 occupy the most. And early treatment was better than late treatment.