If you've ever groaned, "Oh, my aching back!", you are not alone. Back pain is one of the most common medical problems, affecting 8 out of 10 people at some point during their lives. Back pain can range from a dull, constant ache to a sudden, sharp pain. Acute back pain comes on suddenly and usually lasts from a few days to a few weeks. Back pain is called chronic if it lasts for more than three months.

Most back pain goes away on its own, though it may take awhile. Taking over-the-counter pain relievers and resting can help. However, staying in bed for more than 1 or 2 days can make it worse.

Acute or short-term low back pain generally lasts from a few days to a few weeks. Most acute back pain is the result of trauma to the lower back or a disorder such as arthritis. Pain from trauma may be caused by a sports injury, work around the house or in the garden, or a sudden jolt such as a car accident or other stress on spinal bones and tissues. Symptoms may range from muscle ache to shooting or stabbing pain, limited flexibility and range of motion, or an inability to stand straight. Chronic back pain is pain that persists for more than 3 months. It is often progressive and the cause can be difficult to determine.

The lower back is a complex area that connects the upper body (including the chest and arms) to the lower body (including the pelvis and legs). The lower back is composed of several vertebrae, disks of soft cartilage, muscles, joints, ligaments, and nerve tissue.

Diagnosis

Blood and urine tests will make sure the pain is not due to an infection or other systemic problem.

X-rays are useful in pinpointing broken bones or other skeletal defects. They can sometimes help locate problems in connective tissue. To analyze soft-tissue damage, computed tomography (CT) or magnetic resonance imaging (MRI) scans may be needed. X-rays and imaging studies are generally used only for checking out direct trauma to the back, back pain with fever, or nerve problems such as extremity weakness or numbness. To determine possible nerve or muscle damage, an electromyogram (EMG) can be useful.

Structural problems

In some cases, back pain may be caused by structural problems, such as:

Bulging or ruptured disks. Disks act as cushions between the vertebrae in your spine. Sometimes, the soft material inside a disk may bulge out of place or rupture and press on a nerve. But many people who have bulging or herniated disks experience no pain from the condition.

Sciatica. If a bulging or herniated disk presses on the main nerve that travels down your leg, it can cause sciatica - sharp, shooting pain through the buttock and back of the leg.

Below are some best yoga poses for strengthen the lower back:

1.During the first week, practice the following yoga asanas:
2.Pawan Mukta Asana, Bhunga Asana, Shalabha Asana, Uttanpada Asana, Shava Asana
3.From the second week onwards, the order of yoga practice should be as mentioned below:
4.Pawan Mukta Asana, Bhunga Asana, Shalabha Asana, Uttanpada Asana, Ekpada Uttan Asana, Rechaka-Puraka Pranayama, Shava Asana