Pain on both sides of the waist is considered to be caused by lumbar muscle strain because there is lumbar fascia on both sides of the waist. When the waist is cold and strained, the lumbar fascia, which is responsible for blood supply, will lead to a decrease in blood circulation and the muscles of the waist will start to stiffen and contract, which will then produce painful clinical manifestations. The pain is generally sore and will be relieved by heat, pressure and rest and will not last too long. The patient will have obvious pressure points on both sides of the lumbar muscles when pressing, at this point the diagnosis of lumbar muscle strain can be confirmed, if the effect is not good through hot compresses and rubbing, you can also choose to go to the hospital for further consultation, oral blood circulation drugs and plasters to relieve the symptoms.