What is the difference between unilateral and bilateral cryptorchidism?

What is the difference between unilateral and bilateral cryptorchidism?

Unilateral means one side. Bilateral means 2 sides. Both can lead to fertility problems although bilateral is more likely. Pregnancy can be possible with both (unilateral more common) depending upon the level of the testis.

What is bilateral cryptorchidism?

Conversely, for experimental purpose, cryptorchidism may also be induced in animals such as bilateral cryptorchidism (BLC), in which both the testis remains within the abdominal cavity.

Is cryptorchidism unilateral?

Typically, only one testicle is retained, and this is called unilateral cryptorchidism. If you have a dog that does not appear to have testicles but is exhibiting male behaviors, a hormonal test called an hCG stimulation test can be performed to see if he is already neutered.

What causes bilateral cryptorchidism?

The exact cause of an undescended testicle isn’t known. A combination of genetics, maternal health and other environmental factors might disrupt the hormones, physical changes and nerve activity that influence the development of the testicles.

Does unilateral cryptorchidism cause infertility?

In unilateral cryptorchidism, the incidence of infertility may be as high as 32% and up to 59% of men with bilateral cryptorchidism may be infertile despite surgical correction by orchidopexy.

When should a cryptorchid dog be neutered?

four to six months
This is normally the earliest point at which they can be successfully neutered, though many veterinarians may recommend waiting until they have reached four to six months of age.

Can a baby boy be born with one testicle?

It is also possible for a baby to be born without one or both testicles. Undescended testicles could be healthy and work normally. Sometimes, however, undescended testicles do not develop correctly and do not work like they should. Doctors do not know what causes undescended testicles.

Why is cryptorchidism more common on the right side?

Corroborating data in the literature, cryptorchid- ism was found to be more frequent on the right- side testicle, which can be associated to the longer distance to be covered by the right testicle in its de- scent due to its more cranial position in the abdomen [4–7, 21, 27].

Why right side cryptorchidism is common?

In full-term infants, the cause of cryptorchidism often cannot be determined, making this a common but sporadic, idiopathic birth defect. It is thought that genetics, combined with maternal and environmental factors, may disrupt hormones and physical changes that influence testicular development and descent.

Should I buy a dog with cryptorchidism?

Since cryptorchidism is a genetic disease, it is not recommended to breed dogs with this condition, as the father could pass it along to his offspring. This is actually assuming the father can reproduce. Most dogs with bilateral cryptorchidism (meaning that both testicles are retained) are sterile.

What happens if a dog has only one testicle?

This is a pretty rare condition called monorchidism, where only one testicle forms when the puppy is in the womb. It is not uncommon for a small/ toy breed to have undescended testicles bi or unilateral until 5- 6 months of age. They tend to drop much slower than large breed dogs.

Is sperm count lower with one testicle?

The answer is that a man with one testicle generally produces just as much sperm as a man with two testicles. But to make sure, doing a sperm analysis would confirm this.

What happens if my baby only has one testicle?

Treatment may require surgery. It’s possible that the testicle will descend on its own by the time your baby is 6 months old. If it doesn’t, he will need surgery. The good news is that surgical repair is an outpatient procedure made with small incisions.

What is the most common location for an undescended testis?

Cryptorchidism may occur on one or both sides but more commonly affects the right testicle. The undescended testicle can usually be palpated in the inguinal canal. In a minority of patients, the missing testicle may be located in the abdomen or be nonexistent.

Does unilateral cryptorchidism affect fertility?