When the topic of sperm donation comes up, the first thing that comes to mind is testing for infectious diseases. Since these diseases—such as HIV and hepatitis—can affect the safety of the recipient and the child to be born, there’s no doubt that this is a critical issue. In fact, international guidelines and regulations also treat donor screening and testing for infectious diseases as a fundamental requirement.

However, after reading through the general information about the test, many people’s next concern is “what else?” For example: Do I have any pre-existing conditions? Are there any hereditary diseases in my family? What about my mental health? What about my lifestyle? What happens if something comes up in the future? — Information on these topics is often scattered across the web, and searching for it can actually increase your anxiety.

In this article, we’ll outline a practical approach to interpreting health information “other than” infectious disease test results. Assuming that the final medical decision rests with healthcare providers, we’ll summarize the “general approach” and “key points to consider” here.

While it’s a myth that “tests can tell you everything,” it’s also not true that “tests tell you nothing.”

To put it simply, it is impossible to eliminate all health risks for donors. No matter how extensive the testing, it is impossible to completely predict future illnesses or accidental genetic changes. The guidelines for providing information also address the fact that not all risks can be ruled out in advance, as well as how to handle information that comes to light later (the flow of information).

On the other hand, it’s also wrong to simply dismiss the issue by saying, “That’s why I don’t understand anything.” Many programs and medical institutions require comprehensive screening that includes not only testing for infectious diseases but also a “medical history interview” covering a person’s medical history and family history. For example, the UK’s HFEA also specifies that donors must undergo medical screening and evaluation.

In other words, reality isn’t a matter of 0 or 100; it’s about understanding your limits and working to “reduce uncertainty.” Since uncertainty is the hardest part of trying to conceive, simply making it something you can “manage” will make you feel a lot better.

After infectious disease screening, the next things to look at are “medical history” and “family history.”

If we consider that infectious disease testing helps reduce the “current risk of transmission,” then medical history and family history serve as the foundation for assessing “health risks to the unborn child.” Professional organizations and academic papers have repeatedly emphasized that an evaluation of medical history, genetics (family history), and psychosocial background is crucial for donor selection.

A common misconception here is the extreme notion that “even the slightest family history is a deal-breaker.” Family history isn’t “black and white”—it has shades of gray. For example, there’s a difference between a disease that runs in a family (which can also be influenced by lifestyle and environment) and a disease that is more likely to be inherited through a specific genetic pattern. Therefore, what really matters is the level of detail in the information: “What disease? To what extent? Who was affected? And when did it develop?”

However, when communicating between individuals, it can sometimes be difficult to ensure this level of detail is consistently maintained. Therefore, in practice, it’s helpful to keep these two points in mind:
Clearly define what is known and what is unknown. Do not “fill in the gaps with assumptions.”

Concerns about genetics are shifting toward the concept of “carrier screening.”

Recently, I’ve been seeing the term “carrier” more often in discussions about genetics. The concept refers to a situation where a person—even if they are healthy—carries a specific genetic variation that could affect their children, depending on the other parent’s genetic profile. While the scope of recommendations varies by country and organization, a trend toward recommending genetic screening (carrier screening) for donors is evident in several documents.

The key point here is that genetic testing is not a panacea. It cannot detect diseases that aren’t included in the test, nor can it completely predict future illnesses. Still, it makes it easier to create a “risk map” than doing nothing at all. Therefore, people with strong genetic concerns often come to the conclusion that, rather than searching online blindly, it’s quicker to have a medical professional explain the purpose and limitations of the test.

There are moments when lifestyle habits seem “more important than genetics.”

When it comes to health information, people tend to focus solely on genetics and medical history, but in reality, their concerns often stem from factors much closer to their daily lives. For example: smoking, drinking, sleep, stress, body weight, and diet. These factors tend to provide a “clear sense of reassurance” more easily than discussions about genetics.

However, striving for perfection in this area can be exhausting. The key is to ensure that you can explain the situation “without getting too hung up on the details.” When considering sperm donation between individuals, the information available may not be as comprehensive as it is at medical institutions or sperm banks. In such cases, rather than focusing on gathering more visible information, it’s helpful to adopt an attitude that avoids overestimating the unknown factors.

When it comes to mental health, don't think in terms of "good or bad"—think about whether it's "stable."

When discussing mental health, it’s easy to inadvertently create prejudice if you don’t phrase things carefully, so I’ll be cautious in what I write. To put it simply, when it comes to relationships, practical factors—such as “whether one’s life is stable,” “whether one can keep commitments,” and “whether one loses control when circumstances change”—have a more direct impact than whether or not a specific mental health diagnosis has been made.

In addition, some guidelines mention screening that includes psychological assessments.
However, it is not realistic for the recipient to fully understand “what’s going on in the other person’s mind.” That is precisely why establishing appropriate “boundaries” and “ways of sharing information” as standard practice from the outset ultimately leads to greater peace of mind (which ties in with the article on boundaries).

What Happens to Health Information We Learn Later? — In This Day and Age, It’s Hard to Keep Anything a Complete Secret

In recent years, the widespread adoption of DNA testing (commonly known as direct-to-consumer genetic testing) has become increasingly commonplace. Medical societies and guidelines have pointed out that these tests can identify donors and genetic relatives, and that the way information is provided to donors, families, and children is changing.

In other words, health information isn’t something you “just set up once and forget about”; it may need to be updated over the long term. Rather than letting this become a source of anxiety, it’s easier to shift your mindset and decide in advance—as discussed here:
“How should we establish a system for sharing information that becomes available later?”
. In countries and regions where such systems are institutionalized, the flow of information—including updates through clinics and banks—has also become a key point of discussion.

What I’ve come to realize through my work is that “peace of mind” depends more on “how one comes to accept something” than on the amount of information.

To be honest, no matter how much health information you gather, your anxiety will never completely disappear. On the contrary, some people become paralyzed by the sheer volume of information. That’s why I believe the key to finding peace of mind lies not in the “amount of information” but in “how you come to terms with it.”

The key to coming to terms with this is to distinguish between what you know and what you don’t know. Don’t assume the worst about what you don’t know. If necessary, consult a healthcare professional just once to clarify the implications and limitations. That’s the gist of it. Once you can do this, health information will no longer seem “scary” but rather something you can “manage.”

Summary: The Future of Infectious Disease Testing Lies in “Designs That Minimize Uncertainty”

Screening for infectious diseases is, of course, essential.
That said, there are concerns—such as family history, genetics, lifestyle, psychological factors, and future updates—that screening alone cannot fully address. Rather than trying to make definitive judgments about these issues, it is more realistic to approach them with a strategy designed to minimize uncertainty.

Sperm donation isn’t something you tackle with sheer determination—it’s something you manage through careful planning. The same goes for health information: rather than becoming paralyzed by the pursuit of zero risk, it’s better to understand your limitations and structure things in a way that “builds up a sense of security.” I hope this article helps you organize your thoughts on this topic.

(*This article is intended to provide general information only and is not a substitute for medical judgment. Please consult a healthcare provider regarding specific tests or treatment plans.)