A woman is warning others about DNA tests because her niece's results uncovered a shocking family secret which led her to end all contact with her mother.

As internet-based DNA tests become easier to purchase many people are discovering fascinating information about their family roots.

A woman warns others about DNA tests because her family experienced disaster when what started as harmless fun turned disastrous.

The anonymous woman, who took to Reddit to share her harrowing ordeal, wrote: While people generally find genealogy interesting and DNA testing helpful for genetic health purposes its important to remember that these tests can reveal family secrets nobody benefits from knowing.

The 23andMe DNA test was taken by her niece in this particular scenario. The test results revealed to her with great shock that the man who had been her dad throughout her life was not her biological father.

Her auntie continued in the thread: The mother experienced shock when she discovered her child's existence despite having ended her affair to protect her family's stability.

She completely misunderstood and thought she was pregnant with her partner's child. She loved him deeply yet she chose not to dissolve their marriage because of this.

After 45 years of keeping it secret the truth emerged and the woman decided to reach out to her biological father right after taking the test when tragedy struck again.

Initially shocked, the mother promised her daughter full disclosure and supported her desire to contact her biological father. The man who was a wonderful father to her died 20 years ago. The bio-dad had become an alcoholic and died not long after she made contact with him.

The woman decided to completely sever ties with her mother after the incident led to a major conflict between them which lasted five years without any communication.

"The mother is heartbroken, but understands her daughter's anger and has said: 'I have it coming... it's my punishment.' Her sole offspring passed away while she reached 73 years old.

In her warning, she urged others to think again before ordering the kit, as it could 'create' some family dramas, adding: Indiscriminately sharing DNA test results after obtaining them can lead to negative consequences. - badly.” 

Some secrets should remain hidden and never be revealed. My sister has permanently changed because she lost her most loved people due to her own actions as she acknowledges.

These tests have shattered families in multiple instances beyond this single story. When health or genetic issues drive the need to understand health history the situation differs.

It's important for her to know that as a human she makes mistakes. At this point, it makes little difference."