Rheumatoid Arthritis Flare Triggers

by Lene Andersen, MSW Patient Advocate

There are many challenges to living with rheumatoid arthritis (RA), but one of the most frustrating is its unpredictability. It can feel as if you never know from one day to the next — even one hour to the next — how you’ll feel and whether you can keep your plans or will be stuck on the couch dealing with a flare. Identifying the triggers that cause a flare can help you reduce the ups and downs and get more control over your life.

What an intense rheumatoid arthritis flare feels like.

What is a flare?

Hopefully, you have achieved a fairly steady level of your RA, but you may still experience flares. This is a time when your RA temporarily becomes more active and can include increased disease activity, swelling and pain in your joints, fatigue, low-grade fevers, even loss of appetite. Flares may be intense, essentially stopping your life, or they can be smaller and only last a few days. How bad they are depends on how controlled your RA is, as well as possible triggers.

Warning sign for an RA trigger.

What is a trigger?

A trigger is something that elicits a response and is used in different contexts. You may have seen trigger warnings on articles discussing sexual abuse or assault, post-traumatic stress disorder, or other kinds of trauma. It can be a word, an image, an event, or something else entirely. When we talk about a trigger of RA symptoms, it is something that causes an increase in symptoms. What fans the flames of your RA may be different from someone else’s flare, but there are some common triggers.

Stressed man triggering an RA flare.


Some studies seem to indicate that extreme stress may play a role in the development of autoimmune diseases. It is not surprising therefore that many people with RA report that stress is a major flare trigger for them. Finding a way to manage your stress can help, but it’s definitely a challenge, as living with a chronic illness is stressful in itself. Taking a stress management course may help, as well as tuning in to your body’s messages so you are aware when the stress is going into the red zone.

Man talking to his surgeon before surgery.


Trauma causes an intensifying of the stress response, and can be involved in the onset of RA. Trauma can be experienced in an emergency situation, such as extreme weather or a bad car accident, but it can also be experienced in other situations. For instance, breaking a bone or having surgery can be considered a physical trauma and it’s normal for your body to react as if it is. If you are having surgery, you may want to talk to your rheumatologist about ways to avoid a potential flare.

Woman kissing her newborn baby.


In the past, women with RA were advised not to get pregnant, but with better treatments, this has changed. Up to 70 percent of pregnant women who have RA experience a remission during pregnancy. Unfortunately, this is usually temporary — the RA comes back, sometimes in a flare, approximately six weeks after the birth of the child. Increasingly, RA meds, such as certain biologics, can be continued during pregnancy and this may prevent the postpartum flare.

Woman experiencing RA flares caused by her cold.


When you have RA, you may be at increased risk of catching infectious diseases, such as a cold or the flu. This is even more the case if you are on an immunosuppressant medication, such as a biologic. When you are sick, your immune system becomes more active to fight the illness. When that happens, you may also experience an increase in RA symptoms. The more active your immune system is, the more active your autoimmune disease becomes. Getting the flu shot and other vaccines can help you manage this risk.

Selection of foods.


Approximately one quarter of people who have RA report their condition is affected by what they eat, either by improving or flaring. Commonly reported food-related triggers include sugar, processed foods, saturated and trans fats, alcohol, and refined carbohydrates. There hasn’t been a tremendous amount of research into RA and diet, but certain foods may improve your symptoms.

Man playing with his son could trigger a rheumatoid arthritis flare.


We all have lives, commitments, and obligations, and often, RA fatigue makes it difficult to keep up. So we push through and in the process, deplete our energy levels. For many, that means a flare while your body heals and energy builds up again. Being aware of where your limits are and getting rest when you need it can help you prevent flares. That said, sometimes pushing through memorable experience can be worth the consequence of having to take time afterward to heal.

Woman doing water aerobics to ease her symptoms of RA.


Being physically active can actually help your RA. Strengthening muscles protects your joints and exercise that accommodates your RA symptoms helps your body be as mobile as possible. However, too much or the wrong kind of exercise may put a strain on your body and can cause a flare. Modified yoga or aqua fit classes may work better if you have more severe or uncontrolled RA. Talk to your doctor or physical therapist about how to be physically active without triggering a flare.

Barometric pressure affects those with RA.


Everyone “knows” that people with arthritis can feel weather changes by the pain in the joints, but is it actually true? Studies show that two aspects of weather in particular can affect arthritis activity: Barometric pressure, especially when it’s falling, causing cold or precipitation, and the lowering of temperature are associated with worsening of RA symptoms, although some people are more sensitive to heat.

Woman cuddling a teddy bear for comfort.

Coping with a flare

Being prepared for a flare can help you cope better. Put together a pain management kit to treat your pain and include some treats and maybe a stuffed animal for comfort. Accepting the fact that you are flaring and the best way to heal it is by calling in sick to your life, if possible, may shorten the time that you are held captive on the couch. Acknowledging the certain activity or overexertion are likely to have consequences can also help you be emotionally prepared for a flare.

Woman discussing her rheumatoid arthritis flares with her doctor.

When to contact your doctor

If your flare progresses beyond you needing a few days rest or the symptoms grow out of control, contact your doctor. They may be able to help by prescribing a steroid burst, a short course of medication such as prednisone, to get you back on an even keel. If your flare starts looking more like an increase in RA activity, your doctor can also help you assess whether it’s time to consider a change in medication.

Man talking to his doctor about treatment for rheumatoid arthritis.

The best way to control flares

The best way to prevent and control flares is by controlling your RA. Treating your condition aggressively by modifying medication to get the best control is the most effective way to achieve remission or low disease activity. Unfortunately, some people with RA are not receiving the optimal approach to treatment. Being educated about your options can help you have more productive conversations with your rheumatologist. If that doesn’t work, it may be time to get a second opinion.

Lene  Andersen, MSW
Meet Our Writer
Lene Andersen, MSW

Lene Andersen is an author, health and disability advocate, and photographer living in Toronto. Lene (pronounced Lena) has lived with rheumatoid arthritis since she was four years old and uses her experience to help others with chronic illness. She has written several books, including Your Life with Rheumatoid Arthritis: Tools for Managing Treatment, Side Effects and Pain, and 7 Facets: A Meditation on Pain, as well as the award-winning blog, The Seated View. Lene serves on HealthCentral's Health Advocates Advisory Board, and is a Social Ambassador for the RAHealthCentral on Facebook page, facebook.com/rahealthcentral. She is also one of HealthCentral's Live Bold, Live Now heroes — watch her incredible journey of living with RA.