Lumbar hernias occur through defects in the lumbar muscles or the posterior fascia, below the 12th rib. Patients with lumbar hernias can present with a variety of symptoms, including a back pain, bowel obstruction (if contents contain bowel), or urinary obstruction (if contents are kidney / ureter).
Late adulthood is the time of life after age 65. During this time, people go through many changes in their physical appearance, including an increase in wrinkles due to less elastic collagen, a decrease in muscle mass, and a loss of height.
The ages of adolescence vary by culture. The World Health Organization (WHO) defines adolescence as the period of life between 10 and 19 years of age. In contrast, in the United States, adolescence is generally considered to begin somewhere between ages 12 and 14, and end at 19 or 20.