Women with very large breasts were about 40% more likely to have chronic migraine, and about twice as likely to have neck pain, than similar women without, according to a study of 687 women’s medical records published September 22 in the journal Headache. The Wake Forest University School of Medicine researchers drew on one academic neurology practice, January 2017 through December 2024.
Here is why that matters. Frequent headaches in a woman with large breasts often get labeled tension headaches, and what follows is muscle relaxants, heat and physical therapy. Chronic migraine is treated differently. If your headaches were filed under tension years ago and never fully treated, this is a reason to ask for a fresh look at the diagnosis. It is not a reason to assume your breasts caused them, and it is not an argument for surgery. Sleep apnea was on the same list, and it is already measurably hurting memory in middle age.
Key takeaways
- Women with macromastia, the medical term for very large breasts, had about 40% more chronic migraine and about twice as much neck pain as matched women without it.
- Pinched nerves in the neck were more than twice as common in that group, and sleep apnea about 50% more common.
- The records came from one neurology clinic at a single point in time, so the study cannot show breast size causes any of this.
What the study found
Researchers pulled charts on 347 women coded with macromastia and 340 without, matched on age, race and ethnicity, and body mass index. After adjusting for body mass index, demographics and mood disorders, four conditions stood out:
- Chronic migraine, about 40% more common (adjusted prevalence ratio 1.40), very likely somewhere between 16% and 68% more common (95% CI 1.16 to 1.68). There is roughly a 3 in 1,000 chance a gap that size is coincidence.
- Neck pain, about twice as common (aPR 2.04), very likely between 65% and 153% more common.
- Cervical radiculopathy, a pinched nerve root in the neck, more than twice as common (aPR 2.38). The range is wide, very likely between 39% and 306% more common.
- Obstructive sleep apnea, about 54% more common (aPR 1.54), very likely between 23% and 95% more common.
Occipital neuralgia, a sharp nerve pain at the back of the skull, did not clear the bar: about 54% more common, but with a range touching no difference at all (aPR 1.54, 95% CI 0.98 to 2.39).
Among the women with macromastia, only those with neck pain were more likely to go on to have breast reduction surgery, even though insurers list headache as an indication for the operation. The groups also still differed on mood: depression was recorded in 48.4% of the macromastia group versus 29.7% of controls, and anxiety in 57.3% versus 32.9%.
Dr. Kumar’s take
The useful finding here is diagnostic, not anatomical. A woman who carries a lot of weight on her chest wall hands a clinician in a hurry an obvious-looking explanation for her headaches, easy to accept and hard to revisit. A 40% higher prevalence of chronic migraine says it is missing something.
The cervical radiculopathy number is the one most likely to be waved off as posture. Radiculopathy is not muscle strain. It is a nerve root under pressure where it exits the spine, and it makes a specific pattern: pain running down one arm, numbness in particular fingers, sometimes weakness in one movement like straightening the elbow. That is testable on exam and imaging, and stretching does not address a compressed root.
The limits are real. This is a cross-sectional chart review, everything measured at once, so it cannot establish direction. Every woman was already at a neurology clinic, which is not the general population. Macromastia was identified by a billing code, so women whose breast size was never coded are invisible here. And the macromastia group carried far more depression and anxiety, both independently linked to migraine and chronic pain. Adjustment is not erasure. This is an association worth taking seriously, not a settled one.
What it means for you
If you have large breasts and frequent headaches, ask whether the diagnosis has ever been reassessed, or whether “tension headache” was written once and carried forward. Chronic migraine has a definition, and it has preventive treatment.
Bring neck and arm symptoms up separately, in plain terms: pain running down an arm, numbness in specific fingers, a weak grip. Those describe nerve involvement, not soreness. Snoring, gasping at night or daytime sleepiness are worth naming too.
What this does not license is a decision about surgery. Only neck pain, not headache, tracked with going on to have a reduction here, and nobody has shown the operation improves migraine. That is a conversation with a surgeon. Meanwhile, gentler approaches to long-running pain keep getting tested, and whether tai chi actually helps joint and muscle pain has its own evidence base.