Chemical Engineer Employment & Salaries. As of 2014, the US Department of Labor estimated there were 34,300 chemical engineers in the United States. At the time of the survey, the average hourly wage for a chemical engineer was $46.81 per hour. The median annual salary for a chemical engineer was $97,360 as of 2015.
Symptoms of Spinal Cysts. Patients with a spinal cyst may not experience any symptoms if the cyst remains small and stable. As the cyst progresses and becomes more severe, it may cause pain in the back that travels down the legs as well, and can also lead to spinal stenosis, which may cause pain, cramping and numbness.
Back pain can come on suddenly and last less than six weeks (acute), which may be caused by a fall or heavy lifting. Back pain that lasts more than three months (chronic) is less common than acute pain. Back pain often develops without a specific cause that your doctor can identify with a test or imaging study.Conditions commonly linked to back pain include: 1  Muscle or ligament strain. 2  Repeated heavy lifting or a sudden awkward movement may strain back muscles and spinal ligaments.3  If you're in poor physical condition, constant strain on your back may cause painful muscle spasms. Back pain can occur if your spine curves abnormally. 2  Scoliosis, a condition in which your spine curves to the side, also may lead to back pain, but generally only if the scoliosis is severe. 3  Osteoporosis. 4  Your spine's vertebrae can develop compression fractures if your bones become porous and brittle.