One buttock is big and the other is small, which may be caused by congenital developmental abnormality, acute injury, muscle atrophy, and occupational lesions in the buttocks.
1. Congenital developmental abnormality: under normal circumstances, the development of the buttocks usually shows symmetry, but due to individual differences, some people may have a big buttock and a small buttock, but the difference is not particularly obvious, there are no other clinical symptoms, so there is no need for special treatment.
2. Acute injury: acute injury to the buttocks, such as external blows, one side of the buttocks is damaged, may cause symptoms of congestion and edema, resulting in one side of the buttocks become larger, accompanied by pain, subcutaneous bruising and other symptoms.
3. Muscle atrophy: lesions of the nerves innervating the gluteal muscles and lasting for a long time may lead to atrophy of the gluteal muscles, which will lead to one side of the buttocks becoming smaller.
4. Hip occupying lesions: the two sides of the buttocks are not the same size, may also be associated with some hip occupying lesions, such as hemangiosarcoma, neurofibroma, etc., can make the affected side of the buttocks become larger.
If one buttock is big and the other is small, and there are other abnormal symptoms, it is recommended to consult a doctor for examination and treatment.