Cyathula, particularly Cyathula officinalis (commonly known as Chuan Niu Xi in Traditional Chinese Medicine), has a longstanding traditional use for treating afterbirth pain, also known as postpartum pain, which may be due to retained lochia or blood stasis following childbirth. In TCM, Cyathula is believed to invigorate blood circulation, remove blood stasis, and promote the descent of retained placental tissues, thereby alleviating pain and aiding recovery.

Classical Chinese medical texts, such as the "Compendium of Materia Medica" (Bencao Gangmu), reference the use of Cyathula for gynecological conditions, including promoting menstruation and treating postpartum abdominal pain. This usage continues today, with Cyathula being an ingredient in various traditional herbal formulas prescribed for afterbirth pain and related disorders.

However, while pharmacological studies indicate that Cyathula contains saponins, alkaloids, and other compounds with anti-inflammatory and uterotonic effects, direct clinical evidence for its effectiveness specifically in treating afterbirth pain is limited or lacking. The rating of 2 reflects the strong traditional support but paucity of rigorous, modern clinical trials confirming its efficacy for this specific indication.