Many people experience upper back pain at some point in their lives, whether as a result of intense exercise, poor posture, or injury.

Symptoms of upper back pain may include aching muscles and a stabbing pain in your upper back.

Many people believe large breasts are a cause for upper back pain in women. The theory is that the breasts’ weight strains the ligaments and muscles in the back, resulting in discomfort.

This appears to be a logical connection, but upper back pain is a common condition anyone can experience, regardless of sex or breast size. So, what does the research say?

The relationship between large breasts and upper back pain appears to be more anecdotal than empirical. Research has yet to demonstrate a direct link between large breasts and upper back pain.

A small of postmenopausal women did find thoracic pain was associated with larger breasts. But a majority of the participants were overweight or obese. They also wore improperly sized bras.

This supports the claim it’s likely that other factors, like a higher body weight or pinched nerve, are the primary contributors to upper back pain.

There are a number of causes of upper back pain. They include:

Upper back pain isn’t the only discomfort people have believed to be related to breast size.

A examined the relationship between breast size, bra cup size, and pain in participants’ shoulders and neck. Researchers concluded large cup size was an important contributor to shoulder and neck pain.

A small on breast size, bra fit, and thoracic pain in young women found 80 percent of participants were wearing the incorrect bra size.

What’s more, women with larger breasts were more likely to wear the incorrect bra size. It’s a common belief the wrong fit — and the poor posture that results from it — can lead to upper back pain.

Researchers concluded bra fit appeared to be unrelated to pain. But if a bra was poorly fitted, it could impair its function as breast support. This could, in turn, cause certain levels of discomfort.

Breast size is commonly blamed for upper back pain, as are improperly fitted bras.

Though research hasn’t shown breast size to be a determining factor in upper back pain, it may be a contributing factor in some cases.

You can ease your back pain by strengthening the core muscles in your abdomen and back. Try these 10 yoga poses for back pain to get started.

Maintaining sufficient levels of vitamin D and calcium may also help ease back pain.

If your back pain persists or increases in intensity, visit your doctor. The earlier you get a diagnosis, the sooner you can get treatment and relief.