Testicular skin laxity, which means that the scrotal skin on the outer layer of the testicles is loose. Whether or not this is an abnormality needs to be examined and determined at the hospital.1. A detailed physical examination is performed to find out if there is scrotal skin laxity. The scrotum itself has a certain degree of elasticity and can stretch and contract in response to changes in the external environmental temperature. Scrotal skin laxity can occur when the external environment is hot, or when the scrotum is immersed in hot water or exposed to a hot environment. This is not a pathological phenomenon, but is a natural contraction of the scrotal skin and does not require any treatment.2. If there is an increase in the contents of the scrotum, it can lead to scrotal skin relaxation. For example, patients with varicocele or patients with syringomyelia can show skin laxity, skin sagging and skin folding because of increased scrotal contents. Ultrasound examination of the scrotum is required to clarify the presence of associated lesions.