Lumbar transverse syndrome refers to the third lumbar transverse syndrome, which is due to the fact that the transverse process of the third lumbar vertebra is the longest in the whole lumbar vertebra, and the tip of the transverse process is susceptible to damage by external force, resulting in symptoms such as lumbar pain, lumbar activity disorder, and spasm of the adductor muscles. 1. Lumbar pain: on the basis of the long transverse process of the third lumbar vertebra or the asymmetry of both sides, when lumbar spine activities are carried out, such as forward flexion, lateral flexion and rotation, etc., it is easy to cause tearing of the soft tissues attached to the tip of the transverse process, local bleeding, etc., which leads to edema of the tissues, and the lumbar nerves are stimulated to produce pain symptoms. The nature of the pain is generally pulling-like, there are also symptoms of soreness. Heavy symptoms can also appear along the thigh downward radiating pain, but generally does not exceed the knee joint. 2. Lumbar activity disorder: when the transverse process of the third lumbar vertebra is abnormal, it will cause pain and limitation of lumbar activities such as pitching, tilting and turning, especially when the healthy side is flexed and rotated. 3. Spasm of the adductor muscle: because the adductor muscle is innervated by the occlusive nerve from L2-L4, when the posterior branch of the spinal nerve from L1-L3 is stimulated, it can reflexively cause tension and spasm of the adductor muscle. For those who have the above symptoms or are suspected of suffering from third lumbar transverse process syndrome, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, and choose a reasonable treatment plan under the doctor’s comprehensive analysis, so as to avoid delaying the condition.