Name a common contraindication for massage therapy.

Infectious skin diseases are a common contraindication for massage therapy because these conditions can facilitate the spread of infection not only to the therapist but also to other clients. When a therapist comes into contact with an area affected by an infectious disease, there is a risk of transmission through direct contact or bodily fluids. Conditions such as ringworm, impetigo, or any visible lesions or rashes would warrant postponing massage therapy until the condition has been properly treated and resolved. This cautious approach ensures the safety and health of both the client receiving massage and the therapist providing it.