Ovaries News and Research

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Bariatric surgery restores menstrual cycles and reduces polycystic ovaries in obese women

Metabolic bariatric surgery improves menstrual cycle frequency and symptoms of polycystic ovaries in women living with obesity, a new study from the University of Surrey reports.

7 Sep 2026

HRT linked to lower dementia risk, but timing and menopause type matter

In a UK Biobank study of 183,450 postmenopausal women followed for an average of 13.3 years, hormone replacement therapy use was associated with a modestly lower risk of dementia, with stronger associations in women who had surgical menopause or shorter natural estrogen exposure. The relationship also varied by age at HRT initiation, while the observational design means the findings cannot establish that HRT prevents dementia.

27 Aug 2026

Hormone replacement therapy may reduce dementia risk for some women

Hormone replacement therapy (HRT) may reduce the risk of dementia, particularly for certain groups of women - according to a study from the University of East Anglia and the University of Exeter.

26 Aug 2026

Higher doses of common fertility drug linked to pregnancy risks

Around one in six people experience infertility, with irregular or absent ovulation among the most common causes.

10 Aug 2026

NIH funds mosquito genetics research to curb deadly disease spread

Mosquito-borne pathogens, including zika, yellow fever and other illnesses have serious and worldwide impacts on human health.

29 Jul 2026

Vitamin D falls short as an add-on treatment for endometriosis

An eight-week randomized trial of 66 women found that adjunctive vitamin D did not significantly or meaningfully improve endometriosis pain or quality of life compared with placebo during dienogest therapy. The results do not support routine short-term adjunctive supplementation, although the brief trial and absence of post-treatment vitamin D measurements leave longer-term effects uncertain.

19 Jul 2026

Experts recommend renaming PCOS to better reflect whole-body impacts

A condition affecting approximately 170 million adolescents and women worldwide has a new name – one that better reflects its complexity and far-reaching health impacts.

15 Jul 2026

Immunotherapy may help women with early ovarian insufficiency to conceive babies

A pilot study from Karolinska Institutet shows that immunotherapy may enable stimulation of egg maturation in women with autoimmune POI (premature ovarian insufficiency) – a condition that usually leads to infertility.

24 Jun 2026

Most IVF add-ons lack evidence of fertility benefits

There is a lack of evidence to suggest the majority of in vitro fertilization (IVF) add-ons improve fertility in patients undergoing IVF, according to a systematic review and meta-analysis published in The Lancet Obstetrics, Gynaecology, & Women's Health journal.

24 Jun 2026

Lifetime estrogen exposure linked to improved brain health in women

Researchers from the University of Kansas have shown a link between reproductive hormone exposure throughout life and brain health in 459 women aged 65 to 80.

23 Jun 2026

Study uncovers a biological link between chronic oral inflammation and female fertility

Chronic oral inflammation may impair female fertility by triggering a systemic immune response that affects the ovaries.

28 May 2026

Estrogen decline alters brain cell matrix in older females

A largely overlooked space between cells in women's brains may hold the key to understanding memory loss tied to estrogen decline after menopause, reports a new preclinical Northwestern Medicine study.

26 May 2026

Chronic oral inflammation may impair female fertility and egg quality

Chronic oral inflammation may impair female fertility by triggering a systemic immune response that affects the ovaries.

26 May 2026

Global consortium renames polycystic ovary syndrome to reflect science

First, it was named after two men. Then, it was named for a false premise. Now, after more than a century, one of the most common hormone disorders affecting women worldwide has a name that reflects the science.

18 May 2026

Adult weight gain strongly linked to higher obesity-related cancer risk

New research presented at this year's European Congress on Obesity (ECO 2026) in Istanbul, Turkey (12-15 May) shows that people who gain the highest amount of weight across adulthood are at greatly increased risk of certain obesity related cancers.

13 May 2026

Too little or excessive sleep may accelerate organ aging

An analysis of biological clocks throughout the human body suggests that too few hours of sleep-and too many-may speed aging in the brain, heart, lung, and immune system and is associated with a wide range of diseases.

13 May 2026

Global effort redefines the most common hormonal disorder in women

A global effort led by Monash University has changed the name of a significant women's health condition that was misunderstood to be 'all about ovarian cysts'.

13 May 2026

NHS grant funds study on the use of weight-loss drugs for treating PCOS

Dr. Shagaf Bakour, a gynecologist and director of medical education at Aston Medical School, has won an NHS research grant to investigate the use of weight-loss drugs in the treatment of polycystic ovary syndrome (PCOS).

21 Apr 2026

Clinical barriers prevent hormone therapy access after cervical cancer treatment

Most oncologists say they would prescribe hormone therapy to cervical cancer patients who experience early menopause from radiation treatment, but barriers are keeping many from doing so in practice, according to a new University of Kentucky Markey Cancer Center study published in JAMA Network Open.

16 Apr 2026

Researchers map how menstrual cycle phases affect athletic performance

In a repeated-measures study of 18 eumenorrheic female athletes, half-squat strength was highest in the late follicular phase and around ovulation, while handgrip strength peaked in the late luteal phase. Psychological measures also shifted across the cycle, with lower vigor and higher fatigue and depression scores in the late luteal phase, supporting more individualized training monitoring.

12 Apr 2026