Can testicular microlithiasis cause pain?

Usually, no. Persistent pain, swelling or a lump should be evaluated by a doctor.

Should I get a semen analysis if microlithiasis is found?

If you are trying to conceive, your doctor may recommend a semen analysis to check your sperm health.

Can testicular microlithiasis go away?

The calcifications usually remain visible on ultrasound, but they generally do not require treatment on their own.

Testicular Microlithiasis: What Does It Mean for Fertility?

For many men, finding this on an ultrasound can sound concerning, particularly when they are planning a family. However, testicular microlithiasis does not automatically mean that sperm production or fertility will be affected. Doctors usually consider the ultrasound findings alongside semen results, testicular health and other risk factors to understand its significance.

What Is Testicular Microlithiasis?

Testicular microlithiasis is a condition in which tiny calcium deposits, or microcalcifications, appear in testicular tissue on a scrotal ultrasound.

These deposits usually appear as small, bright spots on the ultrasound. They are found in a relatively small proportion of men and may be detected when an ultrasound is performed for another reason.

The finding itself is not the same as testicular cancer. Testicular microlithiasis can also occur in men without cancer or other serious testicular problems.

What Causes Testicular Microlithiasis?

The exact reason why these tiny calcifications develop is not fully understood.

It may form from changes or degeneration within the seminiferous tubules, where sperm are produced. The condition has also been observed alongside certain testicular and reproductive conditions.

Testicular microlithiasis has been reported in men with:

Undescended testicles
Infertility or impaired sperm production
Testicular atrophy
Varicocele
Testicular torsion
Klinefelter syndrome
Hypogonadism
A history of testicular germ cell tumour

How Is Testicular Microlithiasis Diagnosed?

A scrotal ultrasound is the main test used to identify testicular microlithiasis.

If fertility is a concern, your doctor may also recommend:

Semen analysis to assess sperm concentration, movement and morphology
Physical examination of the testicles
Hormonal tests when indicated
Assessment for conditions such as varicocele or an undescended testicle
Additional investigations based on your medical history

Does Testicular Microlithiasis Affect Fertility?

The relationship between testicular microlithiasis and fertility is not completely clear.

A 2024 systematic review found that men with testicular microlithiasis generally had lower semen parameters, particularly sperm concentration, although the authors noted that pregnancy outcomes need further study.

Other research suggests that the effect may be more noticeable when microlithiasis is bilateral or occurs alongside other testicular conditions. This study also found that bilateral microlithiasis was associated with slightly lower testicular volume, sperm concentration, and total sperm count.

Testicular microlithiasis is an ultrasound finding and should not be interpreted as infertility by itself. When fertility is a concern, semen analysis and evaluation of the overall testicular health help us understand whether there is any impact on sperm production.Dr Shwetha Krishnamurthy, Consultant - Obstetrics & Gynaecology, Laparoscopic surgeon, SPARSH Hospital, Yeswanthpur.

Does Testicular Microlithiasis Increase the Risk of Testicular Cancer?

This is an important part of understanding the condition.

Testicular microlithiasis itself is not considered cancer, and most men with isolated microlithiasis may not develop testicular cancer. However, it can occur alongside established risk factors for testicular germ cell tumours.

According to the European Association of Urology, additional risk factors include:

Previous testicular germ cell tumour
Undescended testicle
Testicular atrophy
Infertility or impaired sperm production
Bilateral microlithiasis in certain clinical settings

For men with isolated testicular microlithiasis and no additional risk factors, current EAU guidance does not generally recommend routine ultrasound surveillance or testicular biopsy.

Is Treatment Needed for Testicular Microlithiasis?

No specific medicine removes testicular microlithiasis.

If treatment is needed, it focuses on an associated condition rather than the calcifications themselves. For example, if a man has a separate fertility problem, such as a varicocele or abnormal semen parameters, the doctor may evaluate and manage that condition.

If fertility is a concern, your doctor may recommend semen testing and appropriate fertility evaluation.

When Should You See a Doctor?

Speak with a urologist or fertility specialist if:

You are trying to conceive and have an abnormal semen analysis
Microlithiasis is present along with testicular atrophy
You have a history of an undescended testicle
You have previously had testicular cancer
You notice a testicular lump, swelling or persistent discomfort
You have concerns about your sperm count or fertility

Testicular microlithiasis refers to tiny calcifications seen within the testicles on ultrasound. On its own, it does not mean infertility or cancer. Some research has linked it with reduced semen parameters, particularly when other testicular risk factors are present. If you are trying to conceive, a semen analysis and an overall fertility assessment can help determine whether the finding has any relevance to your reproductive health.

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FAQs on Tiny Spots on Testicles: What Do They Mean for Fertility?

Can testicular microlithiasis cause pain?
Usually, no. Persistent pain, swelling or a lump should be evaluated by a doctor.
Should I get a semen analysis if microlithiasis is found?
If you are trying to conceive, your doctor may recommend a semen analysis to check your sperm health.
Can testicular microlithiasis go away?
The calcifications usually remain visible on ultrasound, but they generally do not require treatment on their own.

Tiny Spots on Testicles: What Do They Mean for Fertility?

An ultrasound may sometimes show tiny bright spots inside the testicles that were not expected during the scan. These findings are called testicular microlithiasis. In this guide, we explain what testicular microlithiasis means, why it occurs, and what it may mean for fertility.

In this article: