Lying down waist pain, the following common causes: 1, lumbar muscle strain: If the patient works too hard, the waist will have clinical symptoms of soreness when lying down, but the symptoms will gradually ease after resting for a few days, the patient has clinical manifestations of stiffness in the waist, and the painful symptoms will be relieved when tapping. 2, lumbar cold: cold in the lumbar muscles will cause muscle spasm and tension, which will affect the local blood circulation and make the acidic The metabolic products stimulate the nerves, and the patient will have soreness and pain in the lumbar region when lying down. The patient will have soreness and pain in the lumbar region when lying down. Early diagnosis and early treatment are necessary to relieve the clinical symptoms quickly. The patient should pay attention to protect the lumbar region from cold or overexertion to prevent the recurrence of lumbar pain.