For women who experience pain when sitting but not standing, this is mainly due to sitting without paying attention to sitting posture, which can lead to repeated strains on the muscles and fascia of the waist, causing muscle and fascia spasms. This is especially true when you are sitting and not paying attention to your sitting posture while getting cold, such as blowing air conditioners and fans in summer, this symptom will be particularly obvious, so you must pay extra attention to this situation after it occurs. If you don’t pay attention, it is easy to cause lumbar muscle strain and even lumbar myofasciitis in the later stages. This situation can easily lead to recurrent lumbar soreness and pain when sitting. So when this happens, you must pay more attention to sitting, avoid getting cold, pay more attention to keeping your waist warm, and when the symptoms are obvious, you can apply heat to your waist to relieve the symptoms.