The Girdle of Venus is a curved line or set of lines lying above the heart line and arching below the fingers, present in some hands and not in others. The tradition reads it for sensitivity, refinement, strong emotional responsiveness and, in the older and more moralising literature, for excess of feeling and sensuality. The moralising is worth noting, because much of nineteenth-century palmistry was written within a particular set of social attitudes and its readings of women's hands and of anything to do with sexuality reflect them; a modern reader encountering the older texts should expect that and discount accordingly. Contemporary palmistry has generally softened these readings, which is itself evidence that the interpretations track the culture of the reader rather than anything in the hand.
The line is also called the Ring of Venus, and the moralising reading noted above has a specific and traceable source: the American palmist William G. Benham, whose The Laws of Scientific Hand Reading (1900) devotes a chapter to the Girdle's supposed connection to nervous temperament, holding that a single unbroken Girdle points to strong appetite rather than nervous illness, while a broken or fragmented one signals greater nervousness, a tendency toward hysteria and a more retiring disposition. Benham's book was reprinted well into the twentieth century, which is one reason its Victorian assumptions about temperament, and especially about women's temperament, persisted in palmistry manuals long after they had been abandoned elsewhere. No line on the hand has been shown to correlate with any diagnosable nervous or psychiatric condition, and the Girdle should be read, if at all, as a traditional attribution rather than an assessment of anyone's mental state.