Concerns After Botox: Uneven Muscle Bump on One Side

Questions after receiving Botox injections?

I received Botox injections on August 21, and since then, I've noticed a muscle bulge on the left side when I clench my teeth, while there is none on the right side.
The doctor mentioned that the muscle on the right side was larger, and both sides received six injections each.
Why is there still a noticeable muscle on the left side (it feels quite prominent when I clench)? Did the doctor possibly inject in the wrong location?

Xiao Taozi, 20~29 year old female. Ask Date: 2020/08/31

Dr. Zhou Hongzhang reply Plastic Surgery

1.
It may be due to habitual use of different sides of the muscles, issues with dental occlusion, or inconsistent dosage administration, among other factors.
2.
You can consult with your original physician for further advice.

Reply Date: 2020/08/31

More Info

After receiving Botox injections for facial slimming, it's not uncommon to experience uneven muscle responses on either side of the face. In your case, where you notice a prominent muscle bump on the left side when clenching your jaw, while the right side appears to have relaxed, there are several factors to consider.

Firstly, the effectiveness of Botox can vary from person to person. The primary mechanism of Botox is to temporarily paralyze the muscles where it is injected, thereby reducing their activity and size. However, the distribution and absorption of Botox can differ based on individual muscle anatomy, the amount of product used, and even the injection technique. If the left side of your face has a more robust muscle structure or if the Botox did not penetrate the muscle as effectively on that side, it could lead to the observed asymmetry.

Another possibility is that the left side may not have received the same dosage or the injections may not have been placed in the exact same muscle groups as on the right side. This could happen due to variations in the muscle anatomy or the injector's technique. If the left side's muscle was not adequately targeted, it would remain more prominent compared to the right side.

Additionally, muscle recovery time can vary. After Botox treatment, muscles may take different amounts of time to relax fully. This means that even if both sides received the same treatment, one side might show signs of relaxation sooner than the other.
If you are concerned that the results are not what you expected or if you feel that there might have been an error in the injection process, it is advisable to consult with your healthcare provider or the practitioner who performed the procedure. They can assess the situation and determine whether a follow-up treatment or adjustment is necessary. In some cases, a touch-up injection may be recommended to achieve a more balanced appearance.

It's also worth noting that while some unevenness can be normal immediately after treatment, significant asymmetry or discomfort should be addressed promptly. If you experience any unusual symptoms, such as prolonged pain, swelling, or changes in sensation, it is essential to seek medical advice.

In summary, while it is not uncommon to experience uneven muscle responses after Botox injections, it is important to communicate your concerns with your healthcare provider. They can provide guidance on whether further treatment is needed and help ensure that you achieve the desired results.

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