Woltman’s Sign, the delay in the relaxation phase of the Achilles reflex, has long been recognised as the hallmark of overt hypothyroidism. It is most easily observed with the ankle jerk [1] but delayed relaxation can readily be demonstrated in all deep tendon reflexes including the biceps [2,3]. With hypothyroid patients the relaxation phase can take up to a full second. Numerous devices were devised for timing the ankle jerk [4], including the Burdick photomotogram [3,5,6], but the physical sign is so distinctive that such aids are not required in clinical practice.