Touch is a form of nonverbal communication that is a learned behavior filled with meaning. Touch is generally not necessary in obtaining a health history but is necessary in performing a physical assessment. This poses a difficult problem for the nurse. In general, it is best to avoid the use of touch, particularly invasive procedures, until a nurse-patient relationship is well established and the nurse is knowledgeable about the beliefs related to touch in the particular culture. When touch becomes necessary, it is best used by members of the same gender and culture. If touch seems appropriate while taking a nursing history (e.g., if a patient should begin crying), gentle touch of the nurses hand on the patients upper arm or shoulder could be used.