What could cause numbness and tingling on the left side of my face?

Facial numbness and tingling, especially when limited to one side (such as the left), can have several possible causes:

Trigeminal neuralgia: A nerve condition that causes sharp or tingling sensations on one side of the face. Bell’s palsy: Temporary weakness or paralysis of facial muscles, often with numbness or tingling, usually due to inflammation of the facial nerve. Migraine: Some migraines cause sensory changes, including tingling or numbness in the face before or during a headache. Stroke or TIA (mini-stroke): Sudden numbness on one side of the face—especially with other symptoms like weakness or speech changes—requires emergency care. Dental issues or infections: Abscesses or other dental problems can press on facial nerves. Multiple sclerosis or other neurological conditions: These can affect nerve pathways and cause one-sided facial symptoms. Anxiety or hyperventilation: In some cases, stress or panic can trigger facial tingling. If the numbness is sudden, persistent, or associated with other symptoms (like vision changes, trouble speaking, or muscle weakness), seek medical attention promptly to rule out serious conditions.