- Headache or scalp discomfort
- Tingling, tension, or twitching of facial muscles
These are usually mild and improve with time. Ear plugs are recommended to prevent hearing loss, as the magnet makes loud clicks. A mouth guard can reduce jaw tension.
There is one serious risk with TMS: Seizures. These are extremely rare, though people with epilepsy may be at risk. Unlike electroconvulsive therapy (ECT), TMS does not work by inducing seizures.