Antler, often referring to deer antler (such as Cervus nippon or Cervus elaphus), has a long-standing history in traditional Chinese medicine (TCM) and other East Asian medicinal systems. In these traditions, antler (commonly called "lu rong") is believed to tonify the kidney, replenish vital energy (qi), nourish the blood, and support recovery after childbirth, a period often characterized by weakness and blood loss. These uses are documented in classical TCM texts and remain part of contemporary herbal practice in China, Korea, and Japan.

While there are a few modern studies exploring the pharmacological components of deer antler—such as its content of amino acids, minerals, and growth factors—robust clinical trials specifically examining its efficacy for postpartum weakness are lacking. The bulk of available evidence is thus historical and anecdotal. Some animal and in vitro studies suggest possible roles in immune support, anti-fatigue, and tissue repair, but these do not directly translate to clinical effectiveness for postpartum women. Systematic reviews and meta-analyses have not established antler as a scientifically validated therapy for postpartum weakness.

In summary, the use of antler for postpartum weakness is primarily justified by tradition and historical precedent, rather than by rigorous scientific evidence.