Pain at the top of your back, roughly between the base of your neck and the bottom of your shoulder blades, is extremely common. About 26% of adults experience thoracic spine pain at some point, making it less frequent than low back pain but still widespread. The most likely culprits are muscular tension, poor posture, and stress, though less common causes like disc problems or even organ-related referred pain can play a role.
Posture and Screen Time
The single most common driver of upper back pain is the position you hold your head in throughout the day. Your head weighs roughly 10 to 12 pounds when balanced directly over your spine. But when you tilt it forward to look at a phone or laptop, the effective load on your neck and upper back increases dramatically. At just 15 degrees of forward tilt, the stress jumps to about 30 pounds. At 45 degrees, the kind of angle you’d use scrolling your phone in your lap, it reaches 50 pounds. At 60 degrees, your neck and upper back muscles are working against 60 pounds of force.
That sustained load falls squarely on the muscles between your shoulder blades and along the upper spine. Over hours and days, those muscles fatigue, tighten, and eventually start to ache. This is often called “tech neck,” but the same mechanics apply to reading, cooking, or any activity that pulls your head forward for extended periods.
Stress and Muscle Tension
Stress has a direct, measurable effect on upper back muscles. The trapezius, the large diamond-shaped muscle spanning your upper back, neck, and shoulders, activates in response to mental and emotional stress, not just physical demands. Studies using electrical muscle monitoring show increased trapezius activation during stressful cognitive tasks, even when the body isn’t physically exerting itself. Over time, this chronic low-level activation leads to pain and fatigue in the muscle.
If you notice your upper back pain worsens during high-pressure work periods or eases on weekends and vacations, stress-driven tension is a likely contributor. The pain often concentrates between the shoulder blades or at the tops of the shoulders where the trapezius inserts.
Trigger Points and Referred Pain
Tight, knotted spots in muscle fibers, known as trigger points, are a frequent source of upper back pain. These typically develop in muscles that have been strained, overworked, or held in shortened positions for too long. The tricky part is that trigger points don’t always hurt where they are. A trigger point in your upper back can send pain into your shoulder, up into your neck, or even into the side of your head, mimicking a tension headache. Pressing on the knot often reproduces or intensifies the referred pain pattern, which can help you identify the source.
Disc Problems in the Upper Back
Herniated discs in the thoracic spine are far less common than in the lower back or neck. Thoracic disc surgery accounts for less than 4% of all disc procedures. Imaging studies do find thoracic disc bulges in 11% to 37% of people, but most of these cause no symptoms at all. When a thoracic disc does cause trouble, the symptoms can be vague and hard to pin down, often mimicking neck or lower back problems. Significant cases may involve nerve compression that causes pain wrapping around the ribs, numbness, or in rare instances, weakness in the legs.
When Upper Back Pain Comes from Organs
Sometimes the source of upper back pain isn’t the back itself. Internal organs can produce “referred pain” that shows up between the shoulder blades or across the upper back. Gallstones and pancreatitis can both cause pain in this region. A ruptured spleen can produce sharp pain between the shoulder blades, a pattern known as Kehr’s sign. Heart conditions, including heart attacks, can also manifest as upper back or shoulder pain, particularly when accompanied by chest tightness, shortness of breath, or dizziness.
The key distinction is that organ-related back pain usually comes with other symptoms: nausea, breathing difficulty, abdominal pain, or a general sense that something is seriously wrong. Upper back pain that appears suddenly with no physical explanation and is accompanied by any of these warrants immediate medical attention.
Workstation Setup That Reduces Strain
If you work at a desk, your setup directly shapes how much load your upper back carries. Place your monitor about an arm’s length from your face, between 20 and 40 inches away, with the top of the screen at or just below eye level. This positioning keeps your head balanced over your spine rather than tilted forward. If you wear bifocals, lower the monitor an additional 1 to 2 inches so you aren’t craning your neck to see through the reading portion of your lenses.
Your chair’s armrests should support your forearms with your elbows close to your body and your shoulders relaxed, not hiked up. When armrests are too high, the trapezius muscles stay contracted. When they’re too low or absent, your shoulders slump forward and your upper back rounds.
Exercises That Help
Two movements are particularly effective for relieving upper back stiffness and building mobility in the thoracic spine.
The cat-cow stretch starts on your hands and knees with hands under your shoulders and knees under your hips. Inhale as you arch your back, pressing your chest toward the floor and lifting your head. Then exhale as you round your spine toward the ceiling, tucking your chin and spreading your shoulder blades apart. Cycle through 10 repetitions. This alternating motion mobilizes each segment of the upper spine and helps release tension in the surrounding muscles.
The open book stretch targets rotation, which the thoracic spine is designed for but rarely gets to practice during desk work. Lie on your left side with your knees bent and both arms extended in front of you, palms together. Slowly lift your right hand and rotate your upper body open to the right, following your hand with your eyes, until your right palm faces the ceiling on the other side of your body. Hold for a few breaths, then return. Repeat up to 10 times on each side. If your upper back feels locked up or you get a dull ache between your shoulder blades after sitting, this stretch often provides noticeable relief.
Red Flags Worth Knowing
Most upper back pain is muscular and resolves with better habits, movement, and time. But certain patterns signal something more serious. Seek prompt evaluation if your upper back pain comes with any of the following: unexplained weight loss or night sweats, fever (though fever is absent in up to half of spinal infections), progressive weakness in both legs, loss of bladder or bowel control, or numbness in the groin area. Pain that doesn’t respond to any over-the-counter pain relief also warrants attention, as does new upper back pain in someone with a history of cancer or immune suppression.
Upper back pain following significant trauma, like a car accident or fall, should be evaluated for fracture, especially if there’s point tenderness directly over the spine. And sudden upper back pain paired with chest pain, difficulty breathing, or dizziness raises the possibility of a cardiovascular or vascular emergency.