The 4 Migraine Trigger Sites and How Surgery Treats Each One

The 4 migraine trigger sites are the frontal site above the eyes, the temporal site at the temples, the occipital site at the back of the head and the nasal site behind the eyes. Each is a place where a small sensory nerve can be squeezed or irritated by muscle, blood vessels or tissue, and migraine surgery treats each one by releasing that pressure. At Revive Surgical Institute in Miami, Dr. Morad Askari identifies which sites are involved before recommending migraine surgery.

Here is how each trigger site feels, which nerve is involved and how surgery addresses it.

Why Trigger Sites Matter

Migraine surgery, also called nerve decompression or trigger site surgery, is not one standard operation. It is built around where your attacks start. A patient whose migraines always begin at the base of the skull needs a different procedure from a patient whose pain starts between the eyebrows.

Many patients have more than one active site. Treating every site involved, and only those sites, is one of the biggest factors in how well surgery works.

1. Frontal Trigger Site: Forehead and Brow

How it feels: pain that starts above the eyes or between the eyebrows, often with a heavy or pressing feeling across the forehead. Some patients notice attacks start after long periods of frowning or squinting.

The nerves involved: the supraorbital and supratrochlear nerves, which pass through the small muscles that create a frown.

How surgery treats it: the surgeon releases these nerves from the frown muscles, commonly through a small incision hidden in the natural crease of the upper eyelid. This muscle release is sometimes called corrugator muscle resection.

2. Temporal Trigger Site: Temples

How it feels: pain that begins at the side of the head, at one or both temples, sometimes worse with chewing or clenching.

The nerves involved: small nerve branches in the temple region.

How surgery treats it: depending on the branch involved, the surgeon may release it or address the nearby structures irritating it, using small incisions placed within the hairline.

3. Occipital Trigger Site: Back of the Head

How it feels: pain that starts at the base of the skull and travels upward over the back of the head, often with neck tightness and a tender scalp.

The nerves involved: mainly the greater occipital nerve, as it passes through neck muscle and near a small artery.

How surgery treats it: a discreet incision at the back of the scalp allows the nerve to be freed along its path. This site overlaps with occipital neuralgia, which our guide to occipital neuralgia treatment in Miami covers in detail.

4. Nasal Trigger Site: Behind the Eyes

How it feels: pain that begins behind one or both eyes, sometimes linked to weather changes, congestion or allergy flares.

The cause: contact points inside the nose, such as a deviated septum or enlarged structures pressing on the lining of the nose.

How it is treated: when this trigger is suspected, the evaluation may include imaging and coordination with an ear, nose and throat specialist. Treatment focuses on correcting the contact points inside the nose. Patients interested in the shape of the nose as well can learn about rhinoplasty.

How Your Trigger Sites Are Identified

Finding the right sites is the most important part of planning surgery. Dr. Askari uses several kinds of evidence together:

• Where each attack starts: a headache diary shows whether your pain begins in a consistent spot
• Response to Botox: relief after Botox at a specific site suggests that site is active
• Response to nerve blocks: numbing one nerve and seeing the pain stop is strong evidence of its role
• Examination: tenderness at points where nerves leave the skull or pass through muscle
• Imaging: used when a nasal trigger is suspected
• Your neurologist’s records: the diagnosis and treatment history that come before surgery

Treating More Than One Site

When a patient has several active sites, they can often be treated in the same operation. Each site adds operating time and affects cost, which our guide to migraine surgery cost in Miami explains. Recovery also depends on how many sites are treated, though many patients return to desk work within about one to two weeks.

Why a Nerve Surgeon’s Experience Matters

Each trigger site involves a small nerve that has to be released fully without injury. Dr. Morad Askari, MD, MBA, FACS, is a board-certified plastic surgeon with more than 15 years of experience whose practice includes reconstructive hand surgery and microvascular reconstruction, both built on precise work with fine nerves and vessels. He trained at the Mayo Clinic and the University of Southern California and served as an Associate Professor at the University of Miami.

Conclusion

The 4 migraine trigger sites are frontal, temporal, occipital and nasal, and migraine surgery releases the nerve or corrects the contact point at each site involved. A consistent starting point and a good response to Botox or nerve blocks help confirm which sites to treat. To find out which of your trigger sites could be treated, learn more about migraine surgery in Miami and book a consultation with Dr. Askari.