UB.57 (Chengshan) and SP.6 (Sanyinjiao) – Key Lower Leg Acupuncture PointsUB.57 – Chengshan Urinary Bladder MeridianUB.57 is an essential acupuncture point primarily used for leg, heel, and foot pain, and is regarded as a major point for treating haemorrhoids.Location: It is found in a noticeable depression on the calf—approximately eight cun below UB.40—with the leg stretched or the heel gently lifted to reveal the correct hollow.Primary uses:Effective for haemorrhoids of any type.Relieves calf