causes of unilateral cheek and lip numbness
Lip numbness may be caused by low blood calcium, exposure to cold temperatures, Raynaudâs disease, food allergies, toxic chemical exposure, Lyme disease, reactions to some medications or even cancer, according to HealthGrades.
Underlying health conditions can cause damage to the nerve pathways between the brain and body, resulting in lip numbness and various other symptoms, including difficulty walking, impaired muscle coordination, loss of muscle strength and sporadic twitches and spasms in the muscles, according to HealthGrades.