Do you sometimes feel like your muscles in places like your neck, shoulders, or back are tight and tight? You may be wondering, "What is this?" about these places that feel like a small lump when you touch them and cause unbearable pain when you press on them. For some people, this is so annoying that the pain becomes so severe that they can't even do their daily tasks properly. These are what we medically call 'trigger points.' Today, we are going to talk about a special injection treatment that is used to relieve that pain.
What is a 'Trigger Point'? What happens with this vaccine?
Okay, let's first understand what a 'trigger point' is. Think of our muscles as a bunch of rubber bands that are pulled together. Normally, they stretch and contract. But sometimes, whether due to a sudden injury or because the muscles are constantly stressed in the same way (for example, the muscles in the neck when staring at the computer), some of the fine fibers in these muscles get tangled together, contract, and become tight and cannot stretch again. That tight, knot-like spot is what we call a trigger point .
These areas are very painful when pressed with the hand. Sometimes the pain is not limited to that area, but spreads to distant areas. For example, a trigger point in the shoulder can cause a headache.
Now let's look at what a Trigger Point Injection (TPI) is. Simply put, it involves injecting a medication into a tight, knotted muscle using a thin needle. The injection works by relaxing the tight muscle fibers, restoring blood flow, and relieving pain.
This vaccine can be used for one of the following:
- Local Anesthetic: A medicine used to relieve pain.
- Corticosteroids: Helps reduce swelling and inflammation in the muscles.
- Botulinum Toxin: This is also sometimes used to relax muscles.
- Without any medication (Dry Needling): Sometimes doctors will simply insert a thin needle into the lump and loosen it. We call this 'dry needling'.
What kind of pain are these injections used for?
These injections are mainly used to treat a condition called Myofascial Pain Syndrome . 'Myo' means muscle, and 'Fascia' means the thin white membrane that surrounds the muscle. So this name refers to the pain that occurs in these muscles and the membranes around them. The main cause of this pain is the trigger points that we talked about earlier.
Although trigger points can occur in any muscle in the body, there are a few muscles that are most commonly treated with this injection.
| Muscle Name | Location and associated pain |
|---|---|
| Trapezius | The back of the neck and on both sides of the shoulders. Tension headaches are often caused by knots that form here. |
| Levator Scapulae | On both sides of the neck. The knots in these muscles cause the neck to become so stiff that it is impossible to turn it. |
| Quadratus Lumborum | A muscle located on the inside of the lower back. This is the cause of back pain for many people. |
| Gluteus Medius | In the buttocks area. This knot can cause pain in the groin and buttocks. |
| Masseter | The muscle located in the jaw. This is often painful for people who grind their teeth at night. |
| Sternocleidomastoid | The front of the neck. Tumours that form here can cause headaches and earaches. |
The important thing is that sometimes the pain caused by these trigger points can feel like the pain of another serious condition. For example, if a knot forms in the piriformis muscle in the buttock area, it can irritate the sciatic nerve and cause severe pain down the leg (piriformis syndrome).
Who needs a Trigger Point Injection?
This treatment is not for everyone. If you have trigger point pain, your doctor will recommend other simple treatments first.
- Painkillers
- Applying heat to the painful area
- Massage Therapy
- Physical therapy and stretching exercises
If your pain does not subside after these treatments, your doctor will consider this injection treatment as the next step.
Sometimes the pain is so severe that a person cannot even do physical therapy exercises. In such cases, this injection is given first to reduce the pain, and then physical therapy treatment is started. Then the results are very successful.
What the doctor checks first
Before giving this injection, your doctor will want to make sure there is no other cause for your pain. So he or she will examine you carefully and check for other conditions, such as:
- Muscle strain
- Spinal problems: For example, degenerative arthritis, herniated discs, or spinal stenosis.
- Pain caused by a pinched nerve (Radiculopathy)
Trigger point vaccination is only considered after it is confirmed that there is no other cause.
What happens when you get the vaccine?
Okay, now let's see how the doctor gives this injection. This is a simple thing that usually takes a few minutes.
1. Position: Depending on where the trigger point is, you may be asked to sit or lie down in bed.
2. Cleaning: Clean the injection site thoroughly with an alcohol swab.
3. Locating the location: The doctor will use his fingers to find the exact location of the painful lump. He may even mark the spot with a pen.
4. Grasping the knot: Next, the doctor will grasp the knot with two fingers and tighten it so that the surrounding tissue does not move. You may feel some discomfort or pain at this point.
5. Inserting the needle: Now, a syringe with a thin needle attached is used to insert the needle into the lump. Then, without completely removing the needle, the doctor moves it in and out of the lump several times.
6. Muscle twitch: When the tip of the needle hits the trigger point, you will feel the muscle spasm or twitch. This may be a little uncomfortable, but it is the best sign! It means the needle is in the right place.
7. Injecting the medicine: The doctor moves the needle until the muscle stops twitching or until the muscle feels completely relaxed, and then finally injects the medicine.
8. End: That's it. Now you can go home.
Is this painful?
To be honest, you may feel a little pain. Because a trigger point is a very sensitive place to the touch. You will feel pain even when the doctor feels the area with his fingers. You may feel a burning sensation when the needle is inserted and the medicine is injected. Especially when the needle hits the trigger point, the pain will immediately increase. But don't be afraid, the pain means that the treatment is being done in the right place.
What happens after the vaccine?
After the injection, you can go home. You can use the injected area as usual. However , it is best to avoid strenuous activities and heavy exercise for the first two to three days.
Now let's see what the benefits and risks of this treatment are.
| Benefits | Side Effects & Risks |
|---|---|
| This is generally a very safe treatment. The most common side effects are:
Very rare complications:
|
How long does the relief last? At what time should I see a doctor?
For most people , the pain begins to subside within 24 to 72 hours after the shot. This relief usually lasts about a month . Some people may have relief for longer. If you still have pain after that time, your doctor may recommend that you get another shot.
After getting the vaccine, if you develop signs of infection, such as fever, redness, or warmth at the injection site, call your doctor immediately.
Trigger point injections are a very effective and safe treatment for myofascial pain. Although you may feel some pain during the treatment, the relief is well worth it. If you have these muscle knots that don't go away with over-the-counter pain relievers, talk to your doctor about Trigger Point Injection. He or she will be able to answer any questions you may have.
Take-Home Message
- Trigger points are painful, tight knots in the muscles that can cause pain not only in that area, but also in other areas.
- When simple treatments like painkillers and massage do not help, a treatment called Trigger Point Injection (TPI) is a very effective solution.
- This treatment is very safe, and the possible side effects are very few. The most common is temporary pain at the injection site.
- It is normal to feel a tingling sensation and slight pain during the treatment, which means the needle is in the correct position.
- If you are experiencing this type of pain, it is very important to see a qualified doctor for a proper diagnosis and treatment, rather than engaging in self-treatment.











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