NDPH
Comparison
NDPH, chronic migraine, or something else? How daily headaches differ.
A headache on most days of the month can come from several different disorders. They can feel alike, but they start differently, carry different clues, and are treated differently. Here are the five most common, side by side.
| New daily persistent headache | Chronic migraine | Chronic tension-type headache | Hemicrania continua | Medication-overuse headache | |
|---|---|---|---|---|---|
| ICHD-3 code1 | 4.10 | 1.3 | 2.3 | 3.4 | 8.2 |
| How it starts | Abruptly, on a day most people can name; continuous within 24 hours | Gradually, as episodic migraine attacks become more frequent | Gradually, from episodic tension-type headache | Not defined by how it starts | During regular overuse of acute headache medicine, in someone who already had headaches |
| Pattern | Daily and unremitting from the start, for more than 3 months | Headache on 15 or more days a month for more than 3 months, with migraine features on at least 8 of them | Headache on 15 or more days a month for more than 3 months | Continuous, on one side, for more than 3 months, with flare-ups | Headache on 15 or more days a month |
| What it feels like | Varies; about two-thirds have migraine-like features7 | Often throbbing, one-sided and worse with activity, with nausea or sensitivity to light and sound | Pressing or tightening, both sides, mild to moderate, not worse with routine activity | Strictly one-sided and never switches sides | Often like the original headache, but more frequent |
| The key clue | A clearly remembered start date | A history of separate migraine attacks before it became daily | Few or no migraine features | A red or watery eye, blocked nostril or drooping lid on the painful side, or restlessness; a complete response to indomethacin | Acute medicine on 10+ days a month (15+ for simple painkillers)1 |
| Treatment usually focuses on | Preventives chosen by phenotype; often hard to treat40 | Migraine preventive treatment | Tension-type preventive treatment and non-drug approaches | Indomethacin, which also confirms the diagnosis | Reducing or withdrawing the overused medicine, often with a preventive31 |
Scroll the table sideways on a phone. Codes and criteria from the International Classification of Headache Disorders, 3rd edition.
The question that separates them: how did it start?
The most useful thing you can tell a doctor is not how bad the pain is, but how it began. In NDPH, most people can name the exact day — in one series, 82% could.5 The pain is there from that day on, and within 24 hours it never fully leaves.1 Chronic migraine and chronic tension-type headache, by contrast, usually creep up: episodes get closer together over months or years until they merge.
That is also why the overlap in symptoms causes so much confusion. Because about two-thirds of people with NDPH have migraine-like features, NDPH is often labelled chronic migraine first.7 The onset is what tells them apart.
Why the distinction matters
- Hemicrania continua is the one daily headache with a near-certain treatment: it responds completely to indomethacin. Missing it means missing that.
- Medication-overuse headache can sit on top of any of the others. It is one of the few causes of daily headache that can improve a great deal once the overuse is addressed.31
- NDPH responds less predictably to treatment than chronic migraine, so expectations and plans need to be set differently.7,40
And the causes that must be ruled out first
All of these are primary headaches, meaning nothing else explains them. Before any of them is diagnosed, a doctor needs to exclude secondary causes — a spinal fluid leak, raised pressure inside the head, infection, or a problem with a blood vessel among them.1 Any sudden, severe, or neurologically unusual headache needs urgent care.
References
Numbers in the text link to these sources. Where the evidence comes from migraine rather than NDPH, the text says so.
- Headache Classification Committee of the International Headache Society. The International Classification of Headache Disorders, 3rd edition. Cephalalgia 2018;38(1):1-211. doi.org/10.1177/0333102417738202
- Li D, Rozen TD. The clinical characteristics of new daily persistent headache. Cephalalgia 2002;22:66-9. doi.org/10.1046/j.1468-2982.2002.00326.x
- Cheema S, Mehta D, Ray JC, Hutton EJ, Matharu MS. New daily persistent headache: a systematic review and meta-analysis. Cephalalgia 2023;43(5):3331024231168089. doi.org/10.1177/03331024231168089
- Diener HC, Dodick D, Evers S, et al. Pathophysiology, prevention, and treatment of medication overuse headache. Lancet Neurol 2019;18:891-902. doi.org/10.1016/S1474-4422(19)30146-2
- Yamani N, Olesen J. New daily persistent headache: a systematic review on an enigmatic disorder. J Headache Pain 2019;20:80. doi.org/10.1186/s10194-019-1022-z