Trigeminal Neuralgia: The Most Painful Condition Known

By Dashvanth Healthcare Medical Team · Reviewed by our specialists · East Delhi

What Is Trigeminal Neuralgia?

Trigeminal neuralgia (TN) is often described as the most excruciating pain known — sudden, severe, electric shock-like face pain lasting seconds to minutes, triggered by touch, chewing, talking, or breeze on the face. It affects the trigeminal nerve (5th cranial nerve), which carries sensation from the face.

Types

• Type 1 (Classic TN): Sudden, severe, brief electrical jolts — pain-free intervals between attacks
• Type 2 (Atypical TN): Constant aching or burning pain with occasional stabbing attacks — harder to treat

Causes

Most commonly, a blood vessel (usually superior cerebellar artery) compresses the trigeminal nerve root at its entry into the brainstem. Less commonly: multiple sclerosis (demyelination of the nerve) or a tumour.

Diagnosis

MRI brain (FIESTA/CISS sequence) can visualise the neurovascular conflict. No structural cause visible in atypical cases.

Treatment

Medications

• Carbamazepine (first-line) — highly effective initially; side effects limit long-term use
• Oxcarbazepine, gabapentin, pregabalin as alternatives

Surgical Options

• Microvascular Decompression (MVD): Most effective long-term procedure — Teflon pad separates the artery from the nerve through a small craniotomy. 80–90% pain-free at 1 year
• Gamma Knife Radiosurgery: Non-invasive, for patients unfit for surgery
• Percutaneous procedures (glycerol injection, balloon compression, RF rhizotomy): Day-care procedures, good short-term relief