NIH Websites Are Changing

NIH is moving the launch of its new website to the fall to ensure the best possible experience for everyone who relies on our websites for health information, research, funding opportunities, and other resources.

More Information on Menstruation and Menstrual Problems

NICHD offers links to information to help better understand menstruation and to find needed support for menstrual problems.

Other FAQs

Find answers to other common questions about menstruation, such as how to track your menstrual cycle and when to see a health care provider about menstrual irregularities.

Resources

Links to websites of groups that study and provide information about menstruation and menstrual irregularities.