Butt muscle soreness after squatting may be related to lactic acid buildup, muscle strain, nerve entrapment, etc., which requires general treatment, medication or surgery. 1. Lactic acid accumulation: after squatting, it may be due to a long time without strenuous action, resulting in lactic acid accumulation in the gluteus maximus and gluteus medius muscles, resulting in sore buttocks after squatting. For the lactic acid accumulation caused by, can pay attention to rest, usually appropriate exercise hip muscles. 2. Muscle strain: After squatting, the action can be strenuous, and there is damage to the gluteal muscles and fascia, resulting in sore buttocks after muscle strain. For muscle strain caused by, can follow the medical advice oral ibuprofen and other painkillers, ethylphenidate and other muscle relaxants. Physical therapy and hot compresses are also available. 3. Nerve compression: a herniated lumbar disc can compress and stimulate the nerves innervating the buttocks, producing pain in the buttocks. When squatting deeply, it will induce and aggravate the soreness of buttock muscles. For lumbar intervertebral disc herniation, you can take oral methylcobalamin and other neurotrophic drugs, ibuprofen and other painkillers as prescribed by the doctor; if the drug treatment is ineffective, you can consider decompression surgery. It is recommended that people with buttock muscle pain after deep squatting consult a doctor in time to clarify the cause, and if treatment is needed, it should be standardized under the guidance of a doctor.