Prader Orchidometer

• The cutout sizes of the Prader Orchidometer are compared with the testicle of the patient using the volume that matches most closely in size.
• The Prader Orchidometer consists of 12 pieces of beads with number. Color coded based upon Tanner staging to assist those clinicians who are in training. The number is clearly visible and organize significantly according to the different stages of growth.
• The Prader Orchidometer is made by high quality beech. It won’t be shrunk and twisted. It can last for your entire career.
• The “Endocrine Rosary” will come with a small carrying pouch for protection & storage. The “Endocrine Rosary” string on a sturdy string for easy sliding.

Product description

Prader Orchidometer is a medical instrument that can be used to accurately measure volume and determine the size of the testicle. The cutout sizes are compared with the testicle of the patient using the volume that matches most closely in size. In the absence of varicoceles, the right and left testes are approximately equal in size. Pre-pubertal sizes are 1-3 ml in green, pubertal sizes are considered 4 ml in yellow and up and adult sizes are 12-25 ml in orange. Doctors sometimes informally refer to them as "Prader's balls", "the medical worry beads", or the "endocrine rosary."