Patient Guides
What to Expect During TMS Therapy: A Session-by-Session Guide
By the TMS Nearby editorial team · Reviewed June 12, 2026
Starting TMS can feel like a leap into the unknown — most people have never heard a magnetic coil click against their scalp. In reality, TMS sessions are routine, you stay fully awake, and most patients drive themselves to and from every appointment.
Here's what the process actually looks like, from your first mapping session through the end of a standard course.
Your first session: mapping
The first visit is the longest, usually 60–90 minutes. Your provider determines two things: the precise spot on your scalp to target (typically the left dorsolateral prefrontal cortex) and your motor threshold — the minimum stimulation that makes your thumb twitch, which calibrates your personal dose.
You'll sit in a comfortable chair, awake, with the magnetic coil resting against your head. The mapping process involves a series of single clicks while the technician fine-tunes position and intensity.
Daily treatment sessions
Standard sessions run about 20–40 minutes (as little as 3–10 minutes for theta burst protocols). You'll feel a tapping or knocking sensation on your scalp and hear rhythmic clicking — most clinics offer earplugs. You can usually watch TV, listen to music, or chat with the technician.
There's no sedation and no recovery period. You drive yourself home or back to work immediately. Treatment is typically five days a week for six to nine weeks, 30–36 sessions total.
What it feels like (and side effects)
- Scalp discomfort or tapping sensation at the treatment site — most noticeable in week one, usually fades as you acclimate.
- Mild headache after early sessions; over-the-counter pain relievers handle it for most people.
- Facial muscle twitching during stimulation, which the technician can often reduce by adjusting the coil.
- Seizure risk exists but is very rare — estimated at roughly 1 in 10,000 to 1 in 30,000 sessions in screened patients.
When results typically appear
Most responders notice changes in weeks two to four — often sleep, energy, or concentration improving before mood lifts. Some patients are late responders and improve in weeks five or six, so an early lack of response doesn't mean it's failing.
In clinical practice, roughly half to two-thirds of patients with treatment-resistant depression respond to TMS, and about a third reach full remission. If symptoms return months later, shorter re-treatment courses are common and often effective.
Frequently asked questions
Does TMS hurt?
Most people describe it as a tapping or knocking on the scalp — odd at first, not painful. Scalp sensitivity is most noticeable in the first week and fades for the vast majority of patients.
Can I drive after TMS?
Yes. TMS involves no sedation or anesthesia, and there are no activity restrictions afterward. Most patients schedule sessions around work.
What happens if I miss a session?
Missing an occasional session won't derail your course — your clinic will simply extend the schedule. Consistency matters, though, so clinics encourage keeping the five-day-a-week rhythm where possible.
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This guide is for educational purposes only and is not medical, legal, or insurance advice. Costs, coverage, and clinical suitability vary by individual, plan, and clinic — always verify directly with your provider and insurer. If you're in crisis, see our crisis resources.