KEY POINTS: ADHD in women and girls is often misdiagnosed and misunderstood, with more focus on anxiety and depression. Most research about ADHD centers on males and externalizing symptoms instead of internalizing symptoms seen more in females. Many girls and women with ADHD struggle with making and keeping friends. They often miss social cues and feel excluded. Hormonal shifts in the menstrual cycle affect the symptoms of ADHD, increasing distractibility, mood changes, and forgetfulness.