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Find out what happens when in the menstrual cycle, including ovulation, periods and the fertile time.
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Treatments for period problems, including endometriosis and premenstrual syndrome (PMS).
How to recognise when you're likely to be fertile during your menstrual cycle, to help you plan or avoid pregnancy.
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Tips for parents on when to talk to girls (and boys) about periods and what to tell them.
Mum-of-two Michelle Middleton talks about her symptoms and treatment of endometriosis.
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Menstrual changes that need a check-up, such as bleeding between periods, after sex or after the menopause.
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Johanna was 17 when doctors told her she had suffered premature ovarian failure.
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Answers to questions about girls' bodies, including puberty and sex, vaginal discharge and pregnancy.
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Lucy used to have PMS. She describes how the condition affected her physically and psychologically, and what it took to get diagnosed. An expert describes the different symptoms, causes and treatment options for PMS.
Note: the phone number for the National Association for Premenstrual Syndrome (NAPS) has changed since this video was made. It is now 0844 8157311.
Media last reviewed: 23/04/2014
Next review due: 23/04/2016
Articles and videos all about puberty, including tips to help parents prepare their children, and common Q&As
Find out about treatments and support available if you have fertility problems
Find out about HRT, early menopause, supporting your partner and how to deal with symptoms
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