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r/breastcancer PUBLIC

r/breastcancer is a support and information group for people who have been diagnosed with breast cancer.

51,577 members
Created: Dec 2011
Language: EN
POSITIVE SENTIMENT
Last analyzed: Jun 16, 2026 18:01
Marketing Summary

r/breastcancer is a PUBLIC community on Reddit with over 51,577 members. It currently has a positive sentiment with an engagement rate of 8.1%. With a community friendliness score of 80, this subreddit presents a high conversion potential for authentic brand participation. Strict rules against self-promotion are in place, so marketing should focus strictly on value-driven community engagement.

80
Friendliness Score
8.1%
Engagement Rate
100
Conversion Potential
2.0%
Monthly Growth
Marketing Analytics
17.7
Avg Post Score
13.0
Avg Comments
25
Brand Mentions
2
Posts/Hour
Top Post Types
text 100.0% (50)
Peak Activity Hours
Times shown in UTC (Coordinated Universal Time) Local times are automatically converted based on your browser's timezone
8AM UTC
High
~20 active
8PM UTC
Medium
~10 active
6PM UTC
Low
~5 active
Community Culture
Community Sentiment POSITIVE
Friendliness Score: 80/100
41.8K
Avg User Karma of Top Posts
30%
Commercial Acceptance
Content Preferences
Moderation Patterns
Rules & Compliance
13
Total Rules
Images
Videos
Self Promotion
Require Flairs
Public
Posting Requirements & Restrictions
No limit
Minimum Karma
No limit
Min Account Age (days)
ANY
Submission Type
Enabled
Flair System
Subreddit Rules
  1. No posting before diagnosis. : Please don’t post before you have been diagnosed with breast cancer. Try r/doIhavebreastcancer or r/womenshealth instead. Changes in your breasts should always be checked. If you have changes or any suspicious symptoms, see a doctor immediately.
  2. No research requests
  3. product development.: r/breastcancer is patient-centered. Research and survey requests can make this space feel less safe.
  4. No fundraising.
  5. asking for help covering medical or living expenses. If you need help with these matters, please visit https://www.reddit.com/r/Assistance/
  6. charitable fundraising.
  7. No link only posts. Posts that don’t explain the link will be removed.: All posts that share links must explain the relevance of the link.
  8. No advertising
  9. social media promotion.: r/breastcancer does not allow any advertising or promotion. Your post/comment has been removed because it includes ad content, free offers, discounts, etc. (as advertising) or mentions your social media account.
  10. No “Breaking News” Cancer Treatments.: We want a cure; however, clinical trials, lab and mouse studies often do not progress to human trials or treatments.
  11. No promoting treatments outside standard of care
  12. misinformation.: Discussions are to be limited to standard of care cancer treatments. Content promoting alternative therapies will be removed. Misinformation also will be removed.
  13. Be brave, friendly, and kind.
  14. name calling, no bullying, no hate speech.
  15. All posts that discuss death and dying must use the death/dying flair.: All posts that discuss death and dying must use the death/dying flair. All posts with the death/dying flair will be held for review. This topic is reserved for regular users and the mods reserve the right to deny any post on death and dying. This flair is not available to new users. r/griefsupport and r/cancergrief may be better alternatives.
  16. Patient support only. Caregivers, please read full rule. : This subreddit is centered on patients. Caregivers, relatives, friends, and coworkers should only ask specific questions and express support. Caregivers must use the caregiver flair. Caregiver posts are held for mod approval.
  17. Caregivers should direct their concerns to /cancercaregivers /caregiversupport /cancerfamilysupport. If you truly want to know the best way to support your loved one, please ask them what they need from you.
  18. Moderator Discretion: Moderators have the right to remove your post/comment at their discretion. If you disagree with this removal, please message the moderator team via modmail.
  19. Acceptable AI Use.: Do not copy or paste other user's information into AI engines. Inappropriate use, misleading content, or other questionable data will be removed at the discretion of the moderation team. For more info, see: https://www.reddit.com/r/sysadmin/comments/17pxnls/does_your_company_have_an_ai_acceptable_use_policy/. AI data should be reviewed with discretion.
Marketing Data Updated
Jun 16, 2026
Rules Updated
Jul 17, 2026
Compliance Updated
Jul 17, 2026

What is r/breastcancer?

r/breastcancer is a public Reddit community created in December 2011 with over 51,577 members. r/breastcancer is a support and information group for people who have been diagnosed with breast cancer.

The community has a positive sentiment and an engagement rate of 8.1%. With a friendliness score of 80, it is considered very welcoming to new members.

Self-promotion is not allowed, so marketing efforts should focus on providing genuine value to the community.

Frequently Asked Questions about r/breastcancer

r/breastcancer is a public Reddit community with 51,577 members. r/breastcancer is a support and information group for people who have been diagnosed with breast cancer.

With a conversion potential of 100 and an engagement rate of 8.1%, r/breastcancer presents a strong opportunity for authentic brand participation. Self-promotion is not allowed, so focus on providing genuine value to the community.

r/breastcancer has 13 community rules.

r/breastcancer has an engagement rate of 8.1% with an average post score of 17.7 and an average of 13.0 comments per post. The community sentiment is positive with a friendliness score of 80 out of 10.
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