Premenstrual syndrome

Overview

PMS (premenstrual syndrome) is the name for the symptoms women can experience in the weeks before their period. Most women have PMS at some point. You can get help if it affects your daily life.

Symptoms of PMS

Each woman's symptoms are different and can vary from month to month.

The most common symptoms of PMS include:

  • mood swings
  • feeling upset, anxious or irritable
  • tiredness or trouble sleeping
  • bloating or tummy pain
  • breast tenderness
  • headaches
  • spotty skin
  • greasy hair
  • changes in appetite and sex drive

Things you can do to help

Do:

  • exercise regularly
  • eat a healthy, balanced diet - you may find that eating frequent smaller meals (every 2-3 hours) suits you better than eating 3 larger meals a day.
  • get plenty of sleep - 7 to 8 hours is recommended
  • try reducing your stress by doing yoga or meditation
  • take painkillers such as ibuprofen or paracetamol to ease the pain
  • keep a diary of your symptoms for at least 2 to 3 menstrual cycles - you can take this to a GP appointment

Don't:

  • do not smoke
  • do not drink too much alcohol

See a GP if:

  • things you can do to help are not working
  • your symptoms are affecting your daily life

A GP can advise you on treatments that can help.

Treating PMS

As well as changes to your lifestyle, a GP can recommend treatments including:

If you still get symptoms after trying these treatments, you may be referred to a specialist.

This could be a gynaecologist, psychiatrist or counsellor.

Complimentary therapies and dietary supplements

Complimentary therapies and dietary supplements may help with PMS, but the evidence of their effectiveness is limited.

They can include:

  • acupuncture
  • reflexology
  • supplements such as vitamin B6, calcium and vitamin D and magnesium (check with a GP or pharmacist if you are also taking medicines before starting to take regular supplements)

Causes of PMS

It's not fully understood why women get PMS.

But it may be because of changes in their hormone levels during the menstrual cycle.

Some women may be more affected by these changes than others.



The information on this page has been adapted by NHS Wales from original content supplied by NHS UK NHS website nhs.uk
Last Updated: 23/05/2025 08:10:43