Per Healthline, facial pain could occur due to a headache, an oral infection, an injury, an abscess, or a migraine and is often diagnosed by asking which part of the face the pain is being mostly felt. Migraines are often associated with heavy pounding headaches that begin or are completely localized to the left side of your head, notes Cove.
Pain on the left side of your face could also be indicative of a tumor or cyst in your jaw. Though this is quite rare, it is a possibility that can’t be ruled out. If the pain is accompanied by jaw or facial swelling, open bleeding sores, or tissue growth around your teeth, you could have a tumor or cyst. However, according to Medical News Today, it could also be related to a past injury or damage to the facial nerves on the left side of your face.
Pain on the side of the face may also be because of a sinus infection. Sinus infections and sinus headaches are a result of an inflammation of the tissue coating the sinus, explains WebMD. If you also have a runny nose and blocked sinuses, the pain on the left side of your face could be due to a sinus infection.
Pain on one side of your face doesn’t seem like a serious symptom, but you should not hesitate to see a doctor for a detailed diagnosis, per Mayo Clinic.
