Is breast cancer suddenly just extremely common in young women right now? (30s and under, as a general age reference guide)

[Nonoanddefintelyno]

I recognize that I do have health anxiety which means that the tiniest bodily sensation, slight ache or textured skin tissue will make me go into overdrive and start conjuring up what "ailment" is causing my symptoms. But over the past few weeks, I've done some independent research in my own time on trusted scientific study/healthcare websites and two things have mainly been consistently showing up through all the websites i have been on-1, that increasingly over the past couple of years there has been a noticeably sharp rise in incidence of terminal breast cancer/secondary breast cancer cases in younger women, and 2, that having dense breast tissue, higher than average testosterone levels and having PCOS can all be strongly linked to higher risks of an otherwise "healthy" young woman developing breast cancer

"PCOS women are not more likely to develop breast cancer, controlling for obesity." : https://www.sciencedirect.com/science/article/pii/S0039128X1300086X

"Using statistical models for analysis, age-adjusted rates for new female breast cancer cases have been rising on average 0.6% each year over 2013–2022. Age-adjusted death rates have been falling on average 1.2% each year over 2014–2023. 5-year relative survival trends are shown below."

: https://seer.cancer.gov/statfacts/html/breast.html

So better at detection and improving survival rates over time, age-adjusted.

Yes dense breasts are a risk factor. It appears the density masks cancer where it exists but also cancer is more likely.

However dense breasts are common and benign. See:

https://theconversation.com/how-breast-tissue-density-affects-your-risk-of-breast-cancer-256028

I was 39 at diagnosis…

Younger women have denser breasts. Hormones make breasts lumpy.
While there are cases of breast cancer in younger women by far the majority are over 50.
Its also rare for breast cancer to diagnosed very late. Almost 90% of breast cancers detected now are curable
OP I think you've posted before.

You definitely have health anxiety.

I was 38 when diagnosed with primary BC. 53 when it returned as SBC.

I'm not sure about breast cancer specifically , but cancer rates in younger people, particularly young women have been rising for a good while now. https://www.mskcc.org/news/why-is-cancer-rising-among-young-adults#:~:text=This%20trend%20is%20especially%20worrying%20in%20women%2C%20according,their%20male%20counterparts%2C%20up%20from%2051%25%20in%202002.%E2%80%9D