Will jaw muscles start to feel weaker after Botox?

Question

I just got my jawline Botox done 5 days ago. After the procedure, my jaw did felt a little slight soreness which is quite common for all and it subsided after an hour or so. Also, I did not hear this from my Dr. but his assistant told me that as time goes by; maybe in a month time, I will start to feel weaker/strength-less in my jaw muscles. E.g. My jaw muscles will start to feel weak and strength-less especially when I consume solid food that requires me to chew. Would like to ask if this is true?

Jason Emer, MD · Answer

It is possible to feel some mild weakness, but shouldn't interfere with your ability to chew solid food. If you remain concerned, I recommend you follow up with your Doctor. Keep in mind, it can take 1-2 weeks for final results for Botox. Best, Dr. Emer

Darrick E. Antell, MD, FACS · Answer

I have never had anyone state that they actually felt their jaw muscles were weaker after Botox. I hope the issue has resolved itself, but if not make sure to see a Board-certified physician if this issue continues. 
*Opinions stated here are only opinions. They are not based on a clinical exam which is recommended.

Hardik Soni, MD · Answer

Thank you for your question. Yes, it is possible to feel weaker in jaw muscle after receiving Botox injections. This happens during the process for reducing muscle volume. Best of Luck!

Michael H. Gold, MD · Answer

Thanks for your question and yes, as a rare effect, one might notice this after Botox but most of the time this is nothing major and nothing that should be worrisome for you.  Botox effects are not permanent so if it does occur, it will resolve over time.

Alex Eshaghian, MD, PhD · Answer

Thank you for your question clairexx12. Botox is a purified protein used to address wrinkles associated with
facial expression. Botox can be placed in the masseter muscle to contour the lower face. Botox will relax this muscle that is used for biting. Depending on the dose, chewing may be more difficult. Please consult with a doctor for specific recommendations. Good luck!

Tracy Evans, MD, FAAD · Answer

Thank you for your question! The answer is technically yes.  The weakness depends on the dose of Botox used - how much is put in the muscle.  Patients can experience some weakness when chewing aggressively, maybe hard candy or chewy steak.  This is generally very rare.  Most patients never experience any weakness.  I would recommend you find a board certified provider with experience with this injection.

Faiyaaz Kalimullah, MD, FAAD · Answer

Thank you for your question.  Some patients do experience mild weakness while chewing after Botox injections into the masseter muscles.  I would say that this is relatively rare - the muscle weakness is usually so subtle that most patients don't notice any weakness at all.  Best of luck!

Melvin Elson, MD · Answer

It is possible but it is so subtle that most patients don't notice it. it does not mean anything

Steven Wallach, MD · Answer

Yes, it is possible to feel a bit weaker in the jaw muscle that is injected. This is part of the process for reducing the muscle volume.

Alain Michon, MD · Answer

Thank you for your question. Bulging masseter muscles can be corrected with Botox injections. It does work well and will redefine the jaw line.  A few weeks after the Botox injections, you may feel some fatigue at the jaw muscles when chewing for a prolong time from weakening of the masseters. However, it will not prevent you from eating solid food. I hope this help. All the best ,Dr.Michon

Will jaw muscles start to feel weaker after Botox?

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