AITA for not telling my parents that I had cancer?

A woman faced a cancer diagnosis alone, choosing silence to avoid reopening old family wounds. Diagnosed a year and a half ago, she was fortunate to catch it early, undergoing one round of chemotherapy and surgery that successfully removed the tumor. Now cancer-free but still monitored, she only recently shared the news with her parents and sister during a visit home, 4,000 km away from where she lives.

The reason for her secrecy? Three years ago, her sister faked a cancer diagnosis for 18 months, shaving her head, altering her appearance, and even photoshopping hospital images to scam donations. This led to legal consequences, yet their parents staunchly defended her, even re-mortgaging their home for her legal fees. After that chaos, the woman feared her real diagnosis would stir up more drama. Was her choice to stay quiet selfish, or a necessary act of self-preservation?

‘AITA for not telling my parents that I had cancer?’

She faced her diagnosis with resilience, navigating treatment and recovery far from home.

A year and a half ago I was diagnosed with cancer. I was fortunate it was caught early. I had one round of chemotherapy and surgery, which luckily for me...

Obviously I am still being monitored by my doctors but as of right now I am cancer free. I didn't tell my parents and sister my cancer until just now...

Her sister’s elaborate lies about cancer cast a long shadow, influencing her decision to stay silent.

The reason I didn't tell my parents and is because three years ago my sister was caught faking cancer for the last year and a half. She shaved her head,...

She used pictures of inside hospitals she found online and sometimes photoshopped herself in them, or pretended it was her arm or hand the IV was in.

She ended up getting charged in court because people donated money that she said was for a service that gives cancer patient rides to and from their treatments but actually...

The sister’s deception extended to exaggerating a minor car accident, dragging the woman into the mess.

She told the court she was envious of the attention I got after I almost died in a car accident. I did get into a car accident six months before...

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My arm was broken. The other driver was drunk but not hurt. I never lost consciousness and was released from the ER as soon as the cast was put on...

It happened on a Friday morning and I was back to work on Monday, although I was riding a desk until my arm healed. At time point I had already...

I didn't get any attention or visits from anyone from there. I called to tell them about it, they weren't here when it happened. My sister lied about the severity...

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Her parents’ unwavering defense of her sister pushed her to protect her own peace.

Despite the proof of her lie and knowing the real story of my car accident they told the court and everyone she was innocent of everything. They re-mortgaged their house...

I don't know if they believe her or are blind or what but to this day they profess her innocence and that she never lied about anything. I don't talk...

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But after her antics when I had a minor car accident and her lies especially about cancer I just didn't want to open that can of worms. She lives with...

It came out by accident and my parents are upset I didn't tell them. I tried to explain why even though I generally don't bring up my sister but they...

Choosing to hide a cancer diagnosis from family is a deeply personal decision, especially in a family tangled in deceit and denial.

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The woman faced her illness alone to avoid the chaos caused by her sister’s past lies, which included faking cancer and exploiting a minor car accident for attention. Her parents’ refusal to acknowledge the sister’s guilt, even going so far as to re-mortgage their home, deepened the woman’s distrust. The twist is that this lack of trust left her isolated during a vulnerable time, highlighting the delicate balance between privacy and family expectations.

Society increasingly values personal autonomy over health disclosures, especially in dysfunctional family dynamics. Family therapist Dr. Susan Forward notes, “Setting boundaries with manipulative family members is essential for protecting mental health” (Toxic Parents: Overcoming Their Hurtful Legacy and Reclaiming Your Life). Many choose silence to avoid emotional turmoil, but this can lead to long-term isolation if unresolved.

Advice for Moving Forward:

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  • Build an alternative support network: Seek out friends or cancer support groups to share experiences, easing the emotional burden without relying on family.
  • Communicate boundaries clearly: Explain to her parents calmly that her silence stemmed from past experiences, not a lack of love, to rebuild trust gradually.
  • Consider family therapy: If feasible, therapy could help her parents recognize her sister’s behavior, fostering healthier communication over time.

Here’s what people had to say to OP:

The online community rallied behind the woman, praising her resilience and calling out the family drama with empathy and wit.

Most agreed she had every right to keep her diagnosis private, especially given her family’s history.

jsodano − NTA. You’re an adult. Even without the sister melodrama, you’re not obligated to share your medical issues with anyone.

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Kikinasai − NTA. You were wise. And obviously didn’t need their support. I gotta say, your sister is a whole bag of crazy, however. I’d stay far, far away from...

PeacefulWarCat − NTA. Your body, your choice.

RoxasofsorrowXIII − NTA. You didn't outright lie, you just didn't tell them. At worst it's a "lie of omission" and all things considered I don't blame you. Besides, I did...

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A lot of people don't want to "burden" their loved ones with that news. (Which btw, is so sad. ..) I'm so sorry you couldn't tell them and count on...

AnarchyAcid − NTA. When dealing with stressful and/or important events like illnesses we tend to go to people who comfort us and support us.

If you aren’t close to family for whatever reason, I see no reason to let them know about private health information. It would have changed nothing in a positive way...

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whatsmypassword73 − NTA, holy smokes I can’t believe I’m saying that. Full disclosure I was ready to go ham on you, but nope, telling them would have caused way more...

Loreo1964 − NTA. Your family is kinda drama central. I can understand why you would want to lay low unless it had been a close call.

[Reddit User] − NTA. Even if your sister hadn’t faked cancer (which is despicable), it is 100% up to you when, how, and whether to tell people of your choosing...

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Remdog58 − NTA You were not lying. Just withholding. If it was not that big of a deal, then why bother? Sometimes it is best all around to just be...

Commenters didn’t hold back on the sister’s deceit and the parents’ enabling, seeing them as the root of the issue.

sighallgone − Wow, you are NTA, however your sister is TA and clearly needs professional help. I get why they would be upset as they would probably would have wanted...

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BUT, it is your choice, your body, your life, you do not owe anyone anything about that. It sounds like that saying something would have opened up another can of...

KittKatt7179 − NTA. I'm glad you are better. That must have been really frightening to go through alone.

But as scary as it must have been, how sad is it that you would rather be alone dealing with a major health issue than open a bag of crazy...

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Former-Ad-1533 − NTA I am sorry that you couldn't open up to your family though, but it is your decision and they have no right to berate you for that....

If she was so jealous after a simple broken arm, who knows what might happen if she finds out you have a serious disease. Congratulations on your recovery btw. And...

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Some offered heartfelt advice, sharing personal stories to connect with her experience.

Problem-Starchild − Uhhh NTA I think, I would say maybe minor Y T A if your sister wasn’t completely unhinged but it’s completely understandable you didn’t want to breathe a...

4theloveofcoolgames − NTA. I don't really think that your car accident had that big a hand in her decision to fake cancer; I think that was likely a story she...

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Once a little time passes and tempers have cooled, I hope that you can approach your parents about this again and let them know that you can't share big life...

If they want to know these things, they need to be willing to have private conversations with you that stay private.

I really hope that you can come to an agreement with them; family support is important no matter how old you are, and you deserve to be able to go...

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Zealousideal-Can8389 − NTA. I was diagnosed with an incurable form of cancer last year abs have not told my parents. My dad has early dementia. My mom has health and...

The community overwhelmingly supported her choice, viewing it as a wise move to avoid family drama. Many celebrated her recovery and urged her to maintain clear boundaries.

This story underscores that protecting your mental health sometimes means setting firm boundaries, even with family. Privacy isn’t selfish—it’s a way to heal from past wounds. While isolation can feel heavy, it can also pave the way for healthier connections. Her recovery is a testament to inner strength and a true inspiration.

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Have you ever kept a major health issue from your family, and why? How do you balance sharing with self-protection in messy family dynamics? Share your story in the comments!

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