Periods - NHS

Find out about periods, including when they usually start and finish, sanitary products, PMS, getting pregnant, and changes to your periods.
This animation explains in detail how the menstrual cycle works.

Adenomyosis - NHS

Stress and Periods: How Stress Affects Your Menstrual Cycle - Hertility Health

Does Kissing Affect Your Hormones and Menstrual Cycle? – Saturn by GHC

What causes irregular periods? Qoctor your quick online doctor

NHS Tayside

What Causes Irregular Periods?

Norethisterone on the NHS, Women's Health

Records Management Code of Practice - NHS Transformation Directorate

Hysteroscopy Under General Anaesthesia - Milton Keynes University Hospital

Why is my period so light? 7 normal reasons for a lighter period

What is a female period cycle? Get facts about your menstrual periods

What do my period cramps & blood mean? - Boots