The sudden appearance of a larger buttocks in women: 1. often due to long-term sitting posture leading to flattened buttocks, muscle relaxation, overall loss of tight texture, the appearance of the illusion caused by the performance of a larger buttocks. 2. or due to the increase in waist and abdominal fat, thighs become thicker, resulting in the appearance of a larger buttocks. 3. if the buttocks become larger and left and right asymmetric within a short period of time, you must be alert to the tumor of the buttocks For example, lipoma and elastic fibroma in the buttocks may lead to asymmetric buttocks enlargement in women. Therefore, if there is an asymmetrical growth of the buttocks, we must pay enough attention to it, go to the hospital in time to improve the relevant examination, choose a reasonable treatment method, and do not delay the condition.