What is low back pain? Causes, symptoms, types

Low back pain is pain located in the lumbar region, between the lowest ribs and the buttocks. It is not a disease in itself but a symptom: it describes where it hurts, not why. It is one of the most common reasons adults seek care, and it can affect work, sleep, and mood.

It can come on suddenly, for example after lifting something or a sudden movement, or develop gradually from sustained postures and repeated loading. Sometimes the pain stays in the back; other times it comes with discomfort that travels into the buttock or leg.

In most cases there is no single clear cause. Habits, physical load, and normal changes in the spine usually combine. Among the most frequent factors:

• Muscle or ligament overload: overexertion, lifting with poor technique, or spending many hours in the same position.
• Sudden movements, falls, or poor ergonomics while sitting or working.
• Disc problems, such as a herniated or bulging disc, which can irritate a nearby nerve.
• Wear and tear of the discs and spinal joints, more common with age; it often shows up on imaging but is not always the source of pain.
• Other spinal conditions identified through the exam and, when needed, imaging.

When pain keeps coming back or lasts several weeks, an evaluation helps rule out causes that need different care and set an appropriate plan.

Symptoms vary with the source and how long the pain has been present. Some episodes are mild and others limit movement considerably. The most common are:

• Pain in the lower back, on one side or both.
• Stiffness when getting up in the morning or after sitting for a while.
• A feeling of pressure, tightness, or burning in the lumbar area.
• Discomfort that increases when bending, twisting, or lifting.
• In some cases, pain, tingling, or numbness running down the buttock or leg, which may point to nerve irritation (sciatica).

Classifying it helps guide the evaluation. It is usually described by duration and by how the pain behaves:

• Acute: lasts less than six weeks. It often comes on suddenly, commonly after exertion or an awkward movement, and many episodes improve within days or a few weeks.
• Subacute: lasts between six and twelve weeks.
• Chronic: lasts more than three months. It may be related to changes in the spine, long-standing habits, or a combination of factors.
• Mechanical: changes with movement and posture; it usually worsens with certain positions or loads and eases with others.
• Inflammatory: less common; it often comes with prolonged morning stiffness, does not improve with rest, and tends to ease with movement. This pattern should be reviewed by a rheumatologist, since it may require specific tests.

Management depends on the cause, intensity, and duration. In most cases without warning signs, clinical guidelines recommend staying active within tolerance rather than prolonged bed rest. Imaging is not always needed at first; whether it is depends on the exam and how symptoms evolve.

Conservative options aim to reduce discomfort, improve mobility, and help you return to your usual activities. Depending on the case, they may include chiropractic adjustments, physiotherapy, therapeutic exercise, table decompression when indicated, and guidance on posture and load. Each option is assessed case by case in the visit; they do not replace a surgical indication, and when the picture calls for it, you are referred to the appropriate specialist.

• Pain or stiffness that limits work, sleep, or daily activity.
• Symptoms into the buttock or leg, or numbness.
• Episodes that do not improve within a few days or that keep recurring.
• Recent imaging you want reviewed in the visit.

If back pain comes with fever, unexplained weight loss, a history of cancer, long-term steroid use or a weakened immune system, or severe pain that does not ease with rest or at night, seek medical care promptly.

Do not book here for loss of bladder or bowel control, numbness in the genital or anal area, leg weakness that is getting worse, or pain after a major injury. That is an emergency.