Hip pain one year after giving birth may not be related to production, but may be caused by chronic strain, acute injury, lumbar disc herniation and other factors. 1. Chronic strain injury: prolonged exposure to cold in the buttocks may cause chronic strain injury, resulting in localized aseptic inflammation, which may lead to symptoms of buttock pain, which may be aggravated by cold or pressure. 2. Acute injury: fall or external blow, resulting in soft tissue damage to the buttocks, can cause symptoms of hip pain, may also be accompanied by redness, swelling, subcutaneous bruising and other symptoms. 3. Lumbar intervertebral disc herniation: it may be related to acute injury or chronic strain injury, which may lead to intervertebral disc herniation and oppression of the nerves innervating the lower limbs, which will induce buttock pain, accompanied by radiating pain in the lower limbs, numbness of the lower limbs and other symptoms. Therefore, one year after giving birth, hip pain and the presence of other abnormal manifestations, it is recommended that women seek medical examination and treatment to avoid adverse effects.