The absence of bearded axillary and pubic hair is seen in Klinefelter syndrome. It is also known as congenital testicular hypoplasia or Klinefelter’s syndrome. The typical karyotype is 47, XXY, and the phenotype is characterized by testicular hypoplasia. The body is elongated, due to an increase in the distance between the heel and the toe bones. In men, the mammary glands are developed, pubic hair is distributed in a feminine pattern, and the penis and testes are small. Severe cases are associated with mental retardation, cryptorchidism and hypospadias. Sometimes it can occur due to some organic diseases, such as hypopituitarism, hypothyroidism, and testicular feminization syndrome. For adult men, too big or too small testicles can affect fertility. For those who have been married for many years without having children, especially when there are problems with the semen routine check, they should go to the hospital to check the size, texture and shape of the testicles in detail to see if there are any abnormalities. In order to avoid infertility. The clinical diagnosis of testicular dysplasia is relatively easy. Generally urologists or male doctors, who are more experienced, can distinguish whether the size and texture of the testicles are well developed by touching them with their hands, and through physical signs combined with pathological diagnosis, plus examination by a doctor, testicular dysplasia is well diagnosed. There are some patients with testicular hypoplasia, if they are not too old or the condition is not too serious, there is still some treatment significance. Chinese medicine theory believes that the kidney is the main reservoir of essence, the kidney is the main reproduction, development and so on. Through these theories, using the method of filling the kidney essence and encouraging the kidney qi has some therapeutic significance for the treatment of testicular hypoplasia. However, the timing is very important, if the age is a little older, has grown into a person, may not be very meaningful treatment. The experts suggest that patients should find and treat these diseases early and have to prevent them. If it is said that inadvertently got mumps how do we control, or as a child found testicular sterility is not good, parents should go to the hospital as early as possible, with the doctor, with treatment to make up for this aspect of the physical defects.