hEDS Triggers: What Actually Sets Off a Hypermobility Flare

The flare didn't come out of nowhere

It rarely feels that way in the moment — one day your joints are managing fine, and the next, everything from your shoulders to your knees feels loose, painful, and unreliable. But hEDS flares are almost never truly random. They usually have a trigger, or a stack of several small ones, that built up quietly before the pain caught up with you.

What a flare actually is

A flare is a temporary worsening of hEDS symptoms — more joint pain, more subluxations, more fatigue, sometimes worsening dysautonomia or MCAS symptoms alongside it. It's not a sign your condition is permanently progressing; it's a spike that, while genuinely miserable, tends to settle back down. Flares can last anywhere from a few days to a few weeks, and they look different for everyone.

The triggers that come up again and again

• Physical overexertion or staying still too long. Both ends of the spectrum can strain connective tissue — a sudden increase in activity, or the opposite, long periods in one position.

• Hormonal shifts. Menstruation, pregnancy and menopause can all increase joint laxity and pain, since hormones affect connective tissue directly.

• Stress, physical or psychological. It's closely tied to muscle tension, nervous system activity and inflammation — which is part of why flares often cluster around genuinely stressful periods.

• Poor sleep. Pain disrupts sleep, and disrupted sleep worsens pain — a loop that can be hard to break from either direction.

• Weather and temperature changes, particularly cold or damp conditions, reported often enough across the hEDS community to be worth tracking for yourself.

• Illness or infection, which places additional load on a body already managing connective tissue fragility.

What a flare can feel like

Beyond the obvious joint pain, flares often bring a wider cluster of symptoms: more frequent subluxations or dislocations, sometimes with minimal provocation; muscle spasms that can feel like cramping or a vacuum-sealed tightness; fatigue and brain fog; digestive symptoms like reflux or bloating; and headaches or heightened pain sensitivity. If dysautonomia or MCAS are also part of your picture, those tend to flare alongside the joint symptoms rather than in isolation — which is why hEDS flares can feel so all-consuming compared to an isolated injury.

Finding your own pattern

General trigger lists are a starting point, not a diagnosis of your specific body. Keeping a simple, judgment-free log — what you did, how you slept, where you were in your cycle, any unusual stress — over a few flares tends to reveal a personal pattern that's far more useful than any generic list. Some people are highly weather-sensitive; others barely notice it but flare hard after a single poor night's sleep. The pattern is yours to find, not to guess at.

What tends to help once a flare has started

• Don't go fully still out of fear. Complete rest for an extended period can feed a "boom and bust" cycle. Gentle, non-provocative movement — adjusted, not abandoned — is generally better than stopping entirely.

• Gentle, relaxation-based massage rather than deep tissue work, which can be too much for already-irritated joints.

• Compression or taping, which research suggests can help with pain, balance and proprioception during a flare.

• Reducing "signals of danger" where you can — overbooked days, long travel, packed schedules — for the duration of the flare, even if just temporarily.

• Reaching out to your physiotherapist rather than going silent. A flare is information for adjusting your plan, not something to push through alone or apologise for.

Frequently asked questions

Sources & further reading

The information in this article is drawn from the following sources. We encourage you to explore them.

• The EDS Clinic — EDS Flare Ups

• Jeannie Di Bon — Understanding Flare-Ups in EDS

• Healthy Consumer PT — Navigating Pain Flares with EDS or Hypermobility: A Practical Guide