Which of the following is NOT a sign or symptom of mastoiditis?

Mastoiditis is an infection of the mastoid bone, which typically occurs as a complication of an ear infection. The common signs and symptoms associated with mastoiditis include drainage from the ear, high fever, and ear pain. These symptoms indicate active inflammation and infection in the area surrounding the ear.

While weight loss can occur in chronic conditions or as a result of prolonged illness, it is not a primary sign or symptom of mastoiditis. The other symptoms are much more closely associated with the acute presentation of mastoiditis, as they reflect the localized infection and inflammation rather than a systemic response that would typically lead to significant weight loss. Thus, weight loss stands out as not being indicative of this specific condition.