Your lower back hurts. Maybe it started when you bent to pick something up. Or after a long day of yard work. Or it just appeared one morning when you got out of bed. You’re not alone—almost everyone experiences lower back pain at some point.
But here’s what most people don’t know: not all lower back pain is the same. The pain might feel similar, but different structures cause it, and knowing which one is causing your pain helps determine the best treatment. Let’s break down the three main causes of lower back pain in simple terms.
Your Lower Back: The Basic Parts
Before we talk about what goes wrong, let’s understand what’s in your lower back. Your spine is made of bones called vertebrae, stacked on top of each other. Between these bones are cushions called discs that absorb shock. The bones connect to each other with small joints called facet joints. Muscles and ligaments hold everything together and allow movement. Nerves run through spaces in the bones, sending signals between your brain and body.
When any of these parts gets injured or irritated, you feel pain. The three most common sources are discs, joints, and muscles or nerves.
Cause #1: Disc Problems
Think of your discs like jelly donuts sitting between your vertebrae. They have a tough outer layer and a soft, gel-like center. These discs absorb shock when you walk, run, or jump.
Disc problems happen when the outer layer weakens or tears. Sometimes the inner gel bulges out (called a bulge or herniation). If this bulge presses on a nerve, you might feel pain, numbness, or tingling that travels down your leg—that’s sciatica.
What disc pain feels like: pain in the center of your lower back, pain that gets worse when bending forward or sitting, pain that might shoot down your leg, and numbness or tingling in your leg or foot.
Common causes include lifting heavy objects with poor form, repetitive bending and twisting, sitting for long periods with poor posture, and age-related wear and tear.
Good news: most disc problems heal with conservative treatment. Your body can reabsorb bulging disc material over time. The key is proper movement, strengthening exercises, and avoiding positions that aggravate the problem.
Cause #2: Joint Problems (Facet Joints)
Your vertebrae connect to each other through small joints on each side called facet joints. These joints allow your spine to bend and twist. Like any joint, they can become irritated, inflamed, or worn down (arthritis).
Facet joint problems are very common, especially as we age. The joints can become stiff, inflamed, or develop arthritis that causes pain with movement.
What joint pain feels like: pain on one or both sides of your lower back (not in the center), pain that gets worse when bending backward or twisting, stiffness, especially in the morning or after sitting, pain that stays in your back and doesn’t travel down your leg, and aching that feels deep in your back.
Common causes include poor posture creating uneven pressure on joints, repetitive movements, especially twisting, age-related wear and tear, and previous injuries that altered joint mechanics.
Treatment: facet joint problems respond well to chiropractic adjustments that improve joint movement, exercises that strengthen supporting muscles, and avoiding positions that stress the joints.
Cause #3: Muscle and Nerve Problems
Your lower back muscles work constantly to support your spine and allow movement. When these muscles are strained, overworked, or develop tight spots (trigger points), they cause pain.
Muscle strains happen when you overstress the muscle—lifting something too heavy, twisting awkwardly, or working muscles that aren’t conditioned for the task. Sometimes nerves get irritated or compressed by tight muscles or inflammation, creating pain that can travel.
What muscle/nerve pain feels like: pain that can be anywhere in your lower back, tight or knotted feeling in your muscles, pain that gets worse with certain movements, sharp pain with specific activities, pain that might spread into your buttocks or legs if nerves are involved, and tenderness when you press on the painful area.
Common causes include sudden lifting or twisting, poor conditioning—weak core muscles, prolonged awkward positions, repetitive movements without proper strength, and stress and tension causing muscle tightness.
Treatment: muscle problems respond to soft tissue therapy, stretching and strengthening exercises, improving movement patterns, and stress management.
Often It’s More Than One Thing
Here’s the tricky part: many people have more than one problem at the same time. You might have tight muscles from poor posture, which puts extra stress on your facet joints, which then become painful. Or a disc problem might cause muscles to tighten up as they try to protect your back.
This is why proper evaluation matters. At Kynetex, we don’t just treat pain—we figure out what’s actually causing it so treatment targets the right problem.
Prevention: What You Can Control
Regardless of which structure is causing your pain, certain habits protect your lower back.
Build core strength. Strong abdominal and back muscles support your spine and reduce stress on discs and joints. Improve flexibility. Tight muscles pull your spine out of alignment and increase injury risk. Move regularly. Sitting for hours weakens muscles and stiffens joints. Take breaks to move. Use good form when lifting. Bend at your knees, not your back. Keep the load close to your body. Maintain healthy weight. Extra pounds increase stress on your lower back. Stay active. Regular exercise keeps muscles strong and joints mobile.
When to Get Help
Some back pain improves with rest and basic care. But get evaluated if pain lasts more than a week, pain is severe, you have numbness or weakness in your legs, pain shoots down your leg past your knee, you’re having trouble with bowel or bladder control, or pain is getting worse instead of better.
Early treatment prevents minor problems from becoming major ones. A muscle strain caught early might need just a few treatments. Ignored for months, that same strain can create chronic dysfunction requiring much longer recovery.
Understanding Your Pain Helps Fix It
Lower back pain is common, but it’s not something you have to live with. Understanding whether your pain comes from discs, joints, or muscles helps guide effective treatment. Different causes need different approaches.
At Kynetex Sports Care & Rehabilitation, we specialize in figuring out exactly what’s causing your lower back pain and creating a treatment plan that addresses the root problem, not just symptoms. We combine chiropractic care with therapeutic exercise and rehabilitation to get you moving better and feeling better.
Don’t let lower back pain limit what you can do this spring and summer. Contact us today for an evaluation. Let’s figure out what’s wrong and get you back to the activities you enjoy.