Why does my flexi joint and fibromyalgia flare up more before my period?

answered:

No one knows

Strength_training
This is not a consistent occurrence in patients with fibromyalgia but it is an occasional complaint. The exact cause is unknown.
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Fibromyalgia Joints Menstrual cycle Menstrual period

Relaxin

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IMO hypermobile joints, which are associated with #fibromyalgia (see British Joint Hypermobility Syndrome studies) become even more loose during menses & pregnancy. Reason likely an hormone called Relaxin secreted at these times, causing greater laxity of ligaments. Loose joints place greater stress on tendons & muscles, which attempt to compensate for loose ligaments. Gravity is the enemy.
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Body Female health Fibromyalgia Hormone Hypermobility syndrome Joint hypermobility Joint looseness Joints Ligament Ligament laxity