The male testicles themselves are not absolutely symmetrical, are slightly lower on the left side than the right side by about 1cm, is normal. It is also necessary to consider the pathological asymmetry caused by diseases, such as: 1. Consider the testicular dysplasia caused by one side, if there are no other uncomfortable symptoms or does not affect sexual life, there is no need for special treatment, do not worry. 2. Suffering from varicocele, testicular syringomyelia, testicular tumor, testicular epididymitis, cryptorchidism, are all can cause testicular left and right height discrepancies. It is recommended to go to the hospital for scrotal ultrasound examination to make a clear diagnosis and treat the symptoms. You should pay attention to personal local hygiene, avoid spicy and stimulating food, increase physical exercise and develop good living habits.