The use of Chinese orchid, commonly referred to as Dendrobium species (such as Dendrobium nobile), for backache is primarily justified by traditional Chinese medicine (TCM) practices. In TCM, Dendrobium is known as "Shihu" and is historically valued for its properties to "nourish yin," moisten dryness, and support general vitality. It is most often used for conditions such as dry mouth, fever, and eye problems rather than specifically for back pain. However, some TCM formulations may include Dendrobium as a minor component in broader herbal prescriptions intended to address musculoskeletal discomfort, including backache, especially when such discomfort is thought to be associated with yin deficiency or general debility.

The evidence supporting the use of Chinese orchid for backache is limited to traditional anecdotal reports and historical texts. There is little to no direct scientific research or clinical trials substantiating its efficacy for back pain specifically. Most modern pharmacological studies on Dendrobium have focused on its immunomodulatory, anti-oxidant, and anti-inflammatory effects, but these have not been directly connected to the treatment of backache in clinical settings. Therefore, while there is a traditional basis for its inclusion in some herbal formulas that may be used for back pain within the TCM framework, the overall evidence for its effectiveness is weak, reflected in a low evidence rating.