WNYUZ
No Result
View All Result
  • Home
  • Politics
  • Opinion
  • Business
  • World
  • Health
  • Entertainment
  • Tech
  • Home
  • Politics
  • Opinion
  • Business
  • World
  • Health
  • Entertainment
  • Tech
No Result
View All Result
WNYUZ
No Result
View All Result
Home News

Cancer before age 50 is increasing. A new study looks at which types

May 9, 2025
in News
Yahoo news home
491
SHARES
1.4k
VIEWS
Share on FacebookShare on Twitter

Cancer before age 50 is rare, but increasing, in the United States and researchers want to know why.

A new government study provides the most complete picture yet of early-onset cancers, finding that the largest increases are in breast, colorectal, kidney and uterine cancers. Scientists from the National Cancer Institute looked at data that included more than 2 million cancers diagnosed in people 15 to 49 years old between 2010 and 2019.

Of 33 cancer types, 14 cancers had increasing rates in at least one younger age group. About 63% of the early-onset cancers were among women.

“These kinds of patterns generally reflect something profound going on,” said Tim Rebbeck of Dana-Farber Cancer Institute, who studies cancer risk and was not involved in the research. “We need to fund research that will help us understand.”

The findings were published Thursday in Cancer Discovery, a journal of the American Association for Cancer Research.

How many extra cancers are we talking about?

The researchers compared cancer rates in 2019 to what would be expected based on 2010 rates.

Breast cancer made up the largest share of the excess cancers, with about 4,800 additional cases. There were 2,000 more colorectal cancers compared with what would be expected based on the 2010 rates. There were 1,800 more kidney cancers and 1,200 additional uterine cancers.

Reassuringly, death rates were not rising for most cancers in the young adult age groups, although increasing death rates were seen for colorectal, uterine and testicular cancers.

Why is this happening?

Explanations will take more research. The big databases used for the study don’t include information on risk factors or access to care. Theories abound and a big meeting is planned later this year to bring together experts in the area.

“Several of these cancer types are known to be associated with excess body weight and so one of the leading hypotheses is increasing rates of obesity,” said lead author Meredith Shiels of the National Cancer Institute.

Advances in cancer detection and changes in screening guidelines could be behind some early diagnoses.

For breast cancer, the trend toward women having a first child at older ages is a possible explanation. Pregnancy and breastfeeding are known to reduce risk.

It’s not a uniform trend for all cancers

This isn’t happening across the board. Cancer rates in people under 50 are going down for more than a dozen types of cancer, with the largest declines in lung and prostate cancers.

Cigarette smoking has been declining for decades, which likely accounts for the drop in lung cancer among younger adults.

The drop in prostate cancer is likely tied to updated guidelines discouraging routine PSA testing in younger men because of concerns about overtreatment.

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

The post Cancer before age 50 is increasing. A new study looks at which types appeared first on Associated Press.

Tags: Associated PressBreast cancerCancerCancer DiscoveryCancer InstituteCancer Researchcolorectaldeath ratesincreasingkidney cancersNational Cancer Instituteuterine cancersYahooYahoo News
Share196Tweet123Share
Yahoo news home
News

How Ukraine smuggled drones into Russia to destroy prized nuclear bombers

June 1, 2025

It hardly seemed credible.Drone after drone, emerging from the top of a shipping container parked by the side of an ...

Read more
News

Ukrainian drones destroyed Putin’s bombers. A secret smuggling operation made it possible

June 1, 2025
News

Bannon Spills on Secret Physical Brawl Behind Musk’s Demise

June 1, 2025
News

Speaker Mike Johnson says some Medicaid recipients will ‘choose’ whether to lose health care under House spending bill

June 1, 2025
News

How to read unit prices and stop overpaying for your groceries

June 1, 2025
Yahoo news home

Democrat hits GOP senator over viral town hall exchange

June 1, 2025
Yahoo news home

Saudi Arabia stops 269,678 Muslims without Hajj permits from entering Mecca

June 1, 2025
Yahoo entertainment home

Angelina Jolie and Brad Pitt’s Daughter Shiloh Choreographs Steamy Dance Performance Under the Name Shi at Hollywood Dinner for French Designer Isabel Marant

June 1, 2025

© 2025 WNyuz.com

No Result
View All Result
  • Home
  • Politics
  • Opinion
  • Business
  • World
  • Health
  • Entertainment
  • Tech

© 2025 WNyuz.com