Skip to main content


There’s nothing more annoyingly predictable than your monthly period—except when it’s not! Especially when it arrives with painful cramps and a range of other physical and emotional symptoms.

All articles in Period

Many women have pain mid-cycle, when they are ovulating. It is also known as mittelschmerz. The pain may last a few minutes to a few hours. It varies from a sharp cramp to a dull ache.

See Mittelschmerz treatments

A comprehensive guide to understanding why you spot in between periods.

Problems with your menstrual cycle include missed periods, irregular menstrual cycle, heavy bleeding, and premenstrual syndrome (PMS).

More than half of all women of childbearing age report pain with their menstrual periods for at least one to two days of their cycle. Understand what's causing the pain and how to treat it.

It’s normal for women to have an irregular period occasionally. But if your periods often arrive too early or too late, it may have a medical cause, such as polycystic ovarian syndrome, a thyroid problem, or an eating disorder.

Premenstrual syndrome (PMS) has many different symptoms, like bloating, cramping, and mood/behavioral changes. Figure out what’s causing your symptoms and how to find relief.

See Premenstrual Syndrome treatments

Premenstrual dysphoric disorder (PMDD) is a mood disorder that is affected by your menstrual cycle (your period). PMDD causes severe mood swings as well as physical symptoms. It is a more severe version of premenstrual syndrome—or PMS.

See Premenstrual Dysphoric Disorder treatments

You know you’re not pregnant, so what is the reason? Missed, irregular, or late periods can happen for many reasons. Figure out why you may have missed your period.

You are in menopause when you haven’t had a period for 12 months. For some women, it can trigger a lot of physical and mental symptoms, from hot flashes to depression.

See Menopause treatments