Left Jaw Swelling and Pain: Possible Causes and Solutions - Family Medicine

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Swelling and pain in the left mandible?


Hello Doctor, I have noticed increasing swelling on the lower left side of my face (approximately near the molars) and it is painful.
I saw a dentist and took pain relievers and anti-inflammatory medication, but there has been no improvement.
After researching online, the closest possibility I found is mumps, but aside from the facial swelling, I do not have any other symptoms of mumps, and the location of the pain is also different from mumps.
I would like to ask the doctor what my condition might be.

Xiao Tongxue, 20~29 year old female. Ask Date: 2022/06/14

Dr. Cai Dongqi reply Family Medicine


Hello: Do you have sinusitis? It is advisable to first consult an otolaryngologist for an examination, as there may also be a possibility of a dental abscess.

Reply Date: 2022/06/14

More Info


Understanding left jaw swelling and pain can be complex, as there are several potential causes that may lead to these symptoms. Based on your description, the swelling and pain located near the lower left side of your face, particularly around the area of the molars, could be attributed to a few different conditions.

1. Dental Issues: One of the most common causes of localized swelling and pain in the jaw area is a dental problem, such as an abscessed tooth or periodontal disease. An abscess occurs when bacteria infect the tooth or the surrounding gum tissue, leading to pus formation, swelling, and pain. If you have not had a recent dental examination or X-rays, it may be worthwhile to revisit your dentist for a thorough evaluation, as sometimes dental issues can be missed in initial assessments.

2. Temporomandibular Joint (TMJ) Disorders: TMJ disorders can cause pain and swelling in the jaw area. These disorders may arise from teeth grinding, jaw clenching, or misalignment of the jaw. Symptoms can include pain in the jaw joint, difficulty opening the mouth, and swelling. If you suspect this could be the case, a consultation with a dentist who specializes in TMJ disorders may be beneficial.

3. Salivary Gland Issues: While you mentioned that you considered mumps (which is a viral infection affecting the salivary glands), it’s important to note that other salivary gland issues, such as sialolithiasis (salivary stones) or infections, can also lead to swelling and pain. These conditions typically present with swelling near the jaw and may be accompanied by dry mouth or difficulty swallowing.

4. Infections: Infections in the area, such as cellulitis or lymphadenitis, can cause swelling and pain. If there is any accompanying fever, redness, or warmth in the area, this could indicate an infection that may require antibiotics or further medical intervention.

5. Cysts or Tumors: Although less common, cysts or tumors in the jaw area can lead to swelling and pain. These can be benign or malignant, and imaging studies such as X-rays or CT scans may be necessary to evaluate any abnormal growths.

Given that you have already seen a dentist and are on pain and anti-inflammatory medication without improvement, it is crucial to follow up with a healthcare provider. They may recommend imaging studies to assess the underlying cause of your symptoms more accurately. Additionally, if you experience any new symptoms such as fever, difficulty swallowing, or spreading redness, seek medical attention promptly.

In summary, while dental issues are a common cause of swelling and pain in the jaw, other conditions such as TMJ disorders, salivary gland problems, infections, or even cysts should be considered. A comprehensive evaluation by a healthcare professional, possibly including imaging studies, will help determine the exact cause and appropriate treatment for your symptoms.

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