Trigger Point Injections

Trigger points or knots can develop in muscles from chronic muscle strain, prior injury, or overuse injury. They can irritate the nerves around them, and cause referred pain to other parts of the body.

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How Do Trigger Point Injections Work?

Trigger point injection (TPI) is an effective option for treating pain and is well tolerated.

A small needle is inserted into the trigger point and injected  with local anesthetic without corticosteroid. With the injection, the trigger point is released and pain is alleviated.

Often a brief course of treatment results in sustained relief. The injection just takes a few minutes. In many cases, the initial injection can result in sustained relief or the TPI can be repeated every 3-4 weeks until sustained relief occurs.


TPI can be used in muscles all over the body. Dr. Glaser is skilled at TPI in the neck, shoulder, arms, back, gluteal region, hips, legs and pelvic floor muscles. TPI is useful in relieving tension headaches, myofascial pain and fibromyalgia. There are no systemic side effects to undergoing trigger point injection.