The standard length of the male penis, which generally refers to greater than 9cm in the erect state and greater than 3cm in the weak state, is normal. As long as it is in this length range, it is generally a normal penis size, and there is a great difference in the size and thickness of the male penis. In addition, it is necessary to determine whether there are other diseases of the penis, such as the presence of prepuce or prepuce, whether there is hypospadias, occult penis, webbed penis and other diseases of the penis, and whether it is accompanied by the performance of penile curvature. It is suggested that you can go to the hospital in time to do physical examination and related examinations to make a clear diagnosis, and if there is a problem, it needs to be dealt with in time.