Lifting injuries are a common cause of back pain. You can protect yourself against damage with good lifting habits, both at home and in the workplace. When you lift, your spine is put under stress. Twisting or jerking while lifting and carrying can injure the small joints of the spine. The discs which separate the vertebrae (spinal bones) and the ligaments which hold the vertebrae together are also at risk. The discs are composed of a jelly-like core, surrounded by a strong fibrous ring. With repeated unsafe lifting, the fibrous ring or its supporting ligaments may tear or rupture. This is commonly known as a disc bulge or herniation. Lifting while bent forward will increase the stress on your spine. Contributing to this stress are factors like the weight of the load, how far it is held from your body, how often and how fast you lift and how long you hold the load.