Block

Blockage or cessation of flow. The term block occurs in the terminology of signs and pathomechanisms:

1. blockage of normal discharge from the body, as in menstrual block (amenorrhea), fecal block (constipation), and dribbling urinary block (retention of urine).
2. blockage or disturbance of the pathways of qì as in qì block. See also stoppage.