See also:

• Health: Medicine: Medical Specialties: Obstetrics and Gynecology: Gynecology  (21)
• Health: Women's Health: Conditions and Diseases  (243)

This category in other languages:
	Danish  (5)   Japanese  (5)

• About.com: Menstruation - Menstration covers the basics for young women, as well as details of what you should expect and when bleeding is excessive.
• All about Menstruation - from FWHC - What really happens during those 28 days? All about ovulation, hormones, cycles, PMS, Menopause, fertility awareness, and customs and traditions of various cultures.
• Comfy Cloth Pads - Advice on making and using natural alternatives to disposable menstrual pads.
• The Cycles Page - A web-based application for tracking and predicting monthly menstrual periods.
• eMedicine Health - Menstrual Pain - Consumer health resource center providing information on the causes, symptoms, and treatment.
• Finding Out Why Your Periods are Abnormal - Information on the causes of missing, irregular or otherwise abnormal menstruation.
• KotexFits - Offers advice a woman needs about periods, menstruation, health and well being, and PMS. Includes maternity and menopause.
• Lady Timer - Menstrual cycle calendar reminders for cell phones to help women track period days and most fertile days. Learn about this free service.
• Menstrual Delay or Skipping - Answers to frequently asked questions about irregularities in the menstrual cycle, particularly late or skipped periods.
• Menstrual Disorders - Explains the irregular menstruation cycle including abnormal menstrual bleeding and missed periods. Notes common diagnoses and treatments for menstrual disorders.
• Museum of Menstruation and Women's Health - Articles, images, humor, and other resources about the cultural history of menstruation, methods of managing it, and related aspects of female health.
• My Period Trends - Calculate and print out your mentruation cycle period. Set reminder via email.
• MyMonthlyCycles - Online calendar for tracking menstrual and fertility cycles and symptoms. Includes a period prediction calculator and menstruation charts.
• Periodic Table - Information and links about menstruation, patterns and commercial sources for reusable cloth sanitary pads and internal cups, and menstrual extraction.
• The Red Spot: Menstrual Culture - The Red Spot is an information source for women and girls about their periods.
• Ruth's Page - Tampons - what you don't know could hurt you.
• The Sacred Cycle - A powerful and transformational work which addresses what it is to be female. It empowers women by embracing the biological cycle and dispels the negative programming women receive from society.
• Tampaction - A campaign to replace tampons with healthy alternatives and to create positive attitudes towards menstruation and women's bodies.
• The TLounge - A place where young women can find answers about menstruation.
• Traditional Chinese Medicine Information Page - A brief and simplistic overview of TCM approaches to treating irregular periods with Chinese herbal medicine.