Upper left back pain is sometimes caused by the spine or back muscles. In other cases, the pain may be unrelated to your back. Organs like the kidneys or pancreas can cause pain that spreads to your upper back.
The type of pain depends on the cause. It might feel like a continuous, dull ache or a sharp and sudden pinch. It may come and go with rest or activity.
Minor upper back pain on the left side can get better on its own. But if the pain is caused by a chronic condition, it might persist until you get treatment.
Read on to learn about the possible causes of upper left back pain, including accompanying symptoms, treatments, and when you should visit a doctor.
Upper left back pain may be the result of an injury, pain disorder, or problem with an organ. Possible causes include:
A muscle strain is a tear or stretch in a muscle. If the strain occurs in your upper back, you can develop upper back pain on one or both sides.
This can happen if you:
Other symptoms include:
The bones of your spine are separated by cushions called discs. A disc that bulges out and ruptures is called a herniated disc.
If the disc is in the middle or upper spine, you might experience upper back pain on one side.
You may also have:
Scoliosis is a skeletal condition where your spine curves sideways. It usually develops in adolescents during a growth spurt.
Mild curves typically don't cause pain. However, by middle age, scoliosis-related back pain is more likely.
Additional symptoms of scoliosis include:
In severe cases, it can cause:
Spinal stenosis is a narrowing in the spinal canal. It's often caused by bone overgrowths called bone spurs. You're more likely to develop bone spurs if you have scoliosis or osteoarthritis in the back.
If the narrowing places pressure on your nerves and spinal cord, you might feel pain on one side of your back.
Common symptoms include:
Kyphosis, or hunchback, is an outward curve of the upper spine.
A mild curve usually doesn't cause any symptoms. But if the curve is severe, it can cause pain in the lower and upper back.
Severe kyphosis may also cause:
A fracture in your spine's vertebrae can cause upper back pain on one side.
You're more likely to get a vertebrae fracture if you have osteoporosis. This condition occurs when your bones become weak and porous.
If you have severe osteoporosis, a simple activity like reaching across your desk can cause a fracture.
Osteoporosis doesn't cause any symptoms or warnings signs in its early stages. In most cases, people with osteoporosis don't know they have the condition until a bone breaks.
A vertebrae fracture can also happen after a severe accident, such as a:
Symptoms depend on the type of injury. This might include:
Medical emergencyA vertebrae fracture from an injury is a medical emergency. Call 911 immediately.
If you have poor posture, your spine and body are not aligned. This places pressure and stress on your back muscles.
It's a common cause for one-sided upper back pain. Other symptoms of poor posture include:
Osteoarthritis occurs when the cartilage at the ends of your bones breaks down. It can happen anywhere in the body, but it's the most common type of arthritis in the back.
If you have osteoarthritis in your spine, you might have upper back pain and discomfort, along with:
Another cause of upper left back pain is myofascial pain syndrome, a condition of sensitive trigger points in your muscles. Placing pressure on these points causes aches and pains.
The most common trigger points are in the trapezius muscle, which is located in your upper back.
Myofascial pain syndrome may also cause:
Pancreatitis, or inflammation of the pancreas, causes pain in the upper abdomen. This pain can radiate to your upper back and worsen after eating.
Acute pancreatitis may also cause:
If pancreatitis becomes chronic, you might have:
When a kidney stone leaves your kidney, it can cause dull one-sided pain in the upper abdomen. This pain may radiate to other parts of the body, including the lower abdomen, groin, side, and upper back.
Additional kidney stone symptoms include:
A heart attack is a block of blood flow to the heart. The symptoms are different for everyone, but it can cause chest pain that spreads to your neck, jaw, or upper back.
Other symptoms may include:
medical emergencyIf you think you or someone else is having a heart attack, call 911 immediately.
If you're overweight, the extra body weight can place pressure on your spine and back muscles.
Additionally, lack of exercise weakens your back and core muscles. This can cause pain throughout your back, including the upper left side.
The natural 'wear and tear' of aging is a common cause of back pain. It often starts around 30 or 40 years old.
Additionally, as you get older, you're more likely to feel symptoms of back-related conditions like scoliosis.
If you smoke and injure your back, you're more likely to have long-lasting back pain.
Smoking slows down blood flow to the spine, making it difficult for the body to heal quickly.
The frequent coughing of smoker's cough can also lead to upper back pain.
There are many causes of upper left back pain, so it's important to pay attention to other symptoms.
If the pain starts in your upper left abdomen and spreads to your back, you might have:
Causes of pain in the upper left back and shoulder blade may include:
The following conditions may cause upper left back pain while breathing:
Pancreatitis may cause upper left back pain after eating. It usually occurs after eating a fatty, greasy meal.
Pain in the upper left back and arm might be caused by:
Upper left back pain may be treated with a combination of home or medical remedies. The best treatment depends on the underlying cause and your overall health.
These home treatments are best for minor back pain:
If your back pain is severe or doesn't go away, a doctor might suggest a medical treatment, such as:
Usually, minor upper back pain gets better on its own. If the pain is severe or doesn't go away, visit a doctor.
You should also seek medical help after an injury or if you experience:
To diagnose the cause of your upper left back pain, your doctor might:
They may also request a:
While back pain is common, it's possible to lower your risk of getting upper back pain. Here are some tips:
Upper back pain on the left side may be a symptom of a spine or back condition. It can also be caused by an injury or problem with one of your organs.
Home remedies like OTC pain medication and hot packs can provide relief for minor back pain. But if the pain is severe, a doctor might recommend prescription medication or physical therapy.
If you have upper left back pain with a fever or numbness, see a doctor. You should also get emergency help after a serious injury or if you're having trouble breathing.