the Rare Condition of Having Three Testicles: What You Need to Know - Urology

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Having three testicles is a rare condition?


Your boyfriend has three testicles; two of them are of similar size, while the third one is smaller, resembling the size of a fish ball.
It does not cause pain as long as it is not pressed or manipulated, similar to the other testicles.
The smaller testicle can move around without causing discomfort, and its original position is above the left testicle.
I would like to ask what this phenomenon is.

Ru, 10~19 year old female. Ask Date: 2015/10/26

Dr. Li Yilun reply Urology


The situation you described is not common, and it is important to note that a simple description cannot determine the condition.
Therefore, it is still recommended to consult a professional physician for evaluation and examination.
Physicians often need to inquire about medical history, perform visual inspections, palpation, and conduct tests to establish a diagnosis and treatment plan.

Reply Date: 2015/10/26

More Info


Understanding the rare condition of having three testicles, known medically as "polyorchidism," is essential for both the individual affected and their partner. This condition is extremely rare, with only a few documented cases in medical literature. Typically, individuals with polyorchidism have two normal-sized testicles and a third, smaller testicle, which may vary in size and function.

In your boyfriend's case, it appears that the third testicle is not causing any pain or discomfort, which is a positive sign. The fact that it can move freely without causing issues suggests that it may be functioning normally or is at least not causing any immediate health concerns. However, the presence of an additional testicle can sometimes lead to complications, including potential issues with fertility or an increased risk of testicular torsion, which is a medical emergency.

From a medical perspective, the exact cause of polyorchidism is not well understood. It is believed to occur during fetal development, possibly due to an abnormality in the formation of the genital system. The additional testicle may not develop fully, which could explain its smaller size. In some cases, the extra testicle may be located in an unusual position, as you described, which can sometimes complicate diagnosis and treatment.

It's important for individuals with this condition to undergo regular medical check-ups. A healthcare provider may recommend imaging studies, such as an ultrasound, to assess the structure and function of the extra testicle. This can help determine if there are any underlying issues that need to be addressed. Additionally, monitoring for any changes in size, shape, or pain is crucial, as these could indicate complications.

In terms of fertility, while having an extra testicle does not necessarily mean that fertility will be affected, it is advisable for your boyfriend to discuss this with a urologist or a fertility specialist if he has concerns about his reproductive health. They can conduct tests to evaluate sperm production and overall testicular function.

Psychologically, it’s important to address any feelings of anxiety or concern that may arise from having a rare condition. Open communication between partners is vital. Encouraging your boyfriend to speak with a healthcare professional can provide reassurance and clarity about his condition. Support from loved ones can also play a significant role in coping with any emotional stress associated with unusual medical conditions.

In summary, while having three testicles is a rare condition, it is not necessarily a cause for alarm, especially if there are no symptoms or complications. Regular medical evaluations and open discussions about health and fertility can help manage any potential concerns. If your boyfriend experiences any changes or discomfort, seeking medical advice promptly is recommended.

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