Risks of conducting a DNA test without telling your husband.

親子鑑定 NIPPT 旦那に内緒 DNA鑑定を行うリスク

Conducting a DNA test without the husband’s knowledge can have a serious impact on trust and feelings within the family. Below is a description of some of the common problems and consequences that can arise in such situations.

1. Breakdown of trust

Conducting a DNA test without informing the husband can seriously damage the relationship of trust when he learns of the test. DNA testing is a very sensitive issue involving the parent-child relationship and the marital relationship, and doing so without consulting the husband can make him feel that you are “hiding something” from him, especially if you do nothing to discuss the issue. If the husband feels that he is being doubted, this can lead to further distrust and conflict.

2. Emotional rebellion or anger

DNA testing is a highly emotional subject, especially when it concerns the father of a child. If a woman learns that her husband has conducted a DNA test without her knowledge, she may be emotionally repulsed and feel strong anger. The thought that “he is being questioned as to whether or not he is the father” can cause self-doubt, anxiety, and anger, which can lead to conflict within the family.

3. Deterioration of marital relations

Regardless of the results of a DNA test, if the trust between husband and wife is damaged, it may be difficult to repair the relationship. In particular, if the reasons for conducting the test are not adequately explained or if the husband is not convinced, it may lead to serious consequences such as divorce or separation.

4. Shock from appraisal results

If the results of the evaluation differ from the husband’s expectations and reveal that he is not the biological father, he may be in for a big shock. This can cause further emotional turmoil and lead to difficult discussions between the couple.

5. Risks posed by lack of dialogue

It is recommended that couples discuss these sensitive issues openly in advance, as acting in secret from the husband may damage the relationship of trust. If there are any doubts or concerns, it is ideal to discuss these feelings openly and frankly before conducting a DNA analysis, so that both parties are satisfied with the results before proceeding to the next step.

For good measure:

  • Dialogue in advance helps to deepen mutual understanding and prevent misunderstandings and mistrust.
  • Even if DNA testing is necessary, it is important to prioritize communication between the couple and proceed in a mutually acceptable manner.

Regardless of the outcome, doing so without informing the husband poses a significant risk to the marital relationship and requires careful judgment and consideration.

Supervisor of the article


Dr. Hiroshi Oka

Director of CAP Laboratory

Graduated from Keio University, Faculty of Medicine

Doctor of Medicine

Medical Doctor