PMS/PMDD

Why Do I Bloat Before My Period?

2026-06-23 · 1:53 · Menstrual Cycle

The short answer

Why do you bloat before your period? Blame your hormones again. In the days before your period, shifting estrogen and progesterone make your body hold on to more water and salt, and slow your digestion down. Let me explain, and what actually helps.

In this video

Hormones make you hold water and slow digestion

It's water, not fat

First, the puffiness. As your hormones change in the second half of your cycle, your body retains more water and sodium. That's why you can feel swollen, your rings feel tight, or the scale jumps a pound or two right before your period. It's water, not fat.

Progesterone slows your gut, hello gas and constipation

Second, your gut. Progesterone, which rises after ovulation, relaxes the muscles in your digestive tract and slows things down. That can mean more gas, constipation, and that heavy, full feeling in your belly.

It usually peaks just before your period, then eases

Bloating usually peaks in the day or two before your period and eases once it starts and hormones reset. Tracking it in an app like PinkyBloom helps you see it's cyclical, so you can plan around your puffy days.

What helps: less salt, more water, movement, fiber

What actually helps: cut back on salty and processed foods, drink plenty of water, yes, water helps you hold less water, keep moving, and get enough fiber. Some people find less caffeine and alcohol helps too.

Severe, or doesn't ease after your period? See a doctor

Period bloating is normal. But if your bloating is severe, doesn't go away after your period, or comes with significant pain, that's worth checking with a doctor, since persistent bloating can have other causes.

PinkyBloom, link in description. Educational only, not medical advice.

So, to recap: pre-period bloating is water retention plus slower digestion from your hormones, it peaks just before your period, and it eases once it starts. Less salt, more water, movement, and fiber all help. PinkyBloom helps you plan around your puffy days, link's in the description. This video is general education, not a substitute for professional medical advice. Take care, and I'll see you in the next one.

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