Apple Women's Health Study

The study identified associations between abnormal uterine bleeding patterns, demographics and medical conditions.

The ongoing Apple Women's Health study found a small and temporary increase in average menstrual cycle length associated with COVID-19 vaccination. Researchers noted there's no evidence the vaccine affects fertility.

Preliminary data from the women's health study shows individuals with PCOS are more likely to have Type 2 diabetes and obesity than those without the condition.

The study looks at menstruation symptoms and features from over 10,000 participants.