Familial Mediterranean fever (FMF) is a rare inherited disorder that causes repeated episodes of fever and inflammation. While symptoms often begin in childhood, many older adults live with this condition and manage its flare-ups throughout their lives. Understanding FMF is important for seniors and their caregivers, especially those of Mediterranean ancestry.
What Is Familial Mediterranean Fever?
Familial Mediterranean fever (FMF) is a rare disorder that may be passed down through families (inherited). It involves repeated fevers and inflammation that often affects the lining of the abdomen, chest, or joints.
FMF belongs to a group of conditions called autoinflammatory diseases. Unlike autoimmune diseases where the body attacks itself, in FMF the immune system’s inflammatory response is triggered without a clear cause. This leads to sudden, painful flare-ups that can affect the abdomen, chest, joints, and skin.
For seniors living with FMF, these attacks can be particularly challenging because they may worsen existing health conditions or make daily activities difficult during flare-ups.
Causes and Genetic Factors
FMF is most often caused by a variation in a gene named MEFV. This gene creates a protein involved in regulating inflammation. The disease usually appears only in people who received two copies of the variant gene, one from each parent. This is called autosomal recessive inheritance or an autosomal recessive condition.FMF most often affects people of Mediterranean ancestry. These include non-Ashkenazi (Sephardic) Jews, Armenians, and Arabs. People from other ethnic groups can also be affected.
The MEFV gene provides instructions for making a protein called pyrin, which helps control inflammation. When this gene has certain variations, the pyrin protein doesn’t work properly, and the body’s inflammatory response becomes overactive. This means even minor triggers can set off a full inflammatory attack.
If you have Mediterranean ancestry — including Sephardic Jewish, Armenian, Arab, Turkish, or Italian heritage — you may have a higher chance of carrying the gene variant. However, FMF can affect people from any ethnic background.
Symptoms in Older Adults
Symptoms usually begin between ages 5 and 15. Inflammation in the lining of the abdominal cavity, chest cavity, skin, or joints occurs along with high fevers that usually peak in 12 to 24 hours. Attacks may vary in severity of symptoms. People are usually symptom-free between attacks.Symptoms may include repeated episodes of:Abdominal painChest pain that is sharp and gets worse when taking a breathFever or alternating chills and feverJoint painSkin sores (lesions) that are red and swollen and range from 5 to 20 centimeters (cm) in diameter
In seniors, these symptoms can sometimes be mistaken for other age-related conditions. The abdominal pain may be confused with digestive issues common in older age, and joint pain might be attributed to arthritis. Key signs to watch for include:
- Sudden high fevers that peak within 12 to 24 hours and then resolve
- Sharp chest pain that worsens when taking a deep breath (due to inflammation of the chest lining)
- Abdominal pain and tenderness that may mimic appendicitis or gallbladder problems
- Joint pain and swelling, especially in the knees, ankles, and hips
- Red, swollen skin lesions on the lower legs that can be quite large (5 to 20 cm)
Between attacks, most people feel completely normal. Attacks can vary in severity and frequency from person to person.
Diagnosis and Medical Tests
If genetic testing shows that you have two pathogenic variants and your symptoms match the typical pattern, the diagnosis is nearly certain. Lab tests and x-rays or other imaging tests are used to check for other possible diseases to help confirm the diagnosis.Levels of certain blood tests may be higher than normal when done during an attack. Tests may include:Complete blood count (CBC) that includes white blood cell countC-reactive protein (CRP) to check for inflammationErythrocyte sedimentation rate (ESR) to check for inflammationFibrinogen test to check blood clotting
Diagnosis in seniors can sometimes be delayed because the symptoms overlap with other age-related conditions. Genetic testing is the most reliable way to confirm FMF — it looks for the specific MEFV gene variants that cause the disease.
Your doctor may also order blood tests during an attack to check for signs of inflammation, including a complete blood count (CBC), C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR). Imaging tests like X-rays may help rule out other conditions.
If you have a family history of recurrent fevers or unexplained inflammation, be sure to share this with your healthcare provider.
Treatment and Management
The goal of treatment for FMF is to regulate symptoms. Colchicine, a medicine that reduces inflammation, may help during an attack and may prevent further attacks. It can also help prevent a serious complication called systemic amyloidosis, which is common in people with FMF. Nonsteroidal anti-inflammatory drugs (NSAIDs) may be used to treat fever and pain.
Colchicine is the main treatment for FMF and has been used successfully for decades. This medication works by reducing inflammation in the body. For seniors, colchicine offers two important benefits:
- Stops acute attacks — It can help shorten and lessen the severity of flare-ups
- Prevents future attacks — Taken daily, it significantly reduces the frequency of episodes
- Prevents amyloidosis — This is the most important benefit. Colchicine can prevent a serious complication called amyloidosis, where abnormal protein builds up in organs
Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen may help with fever and pain during attacks. However, seniors should use NSAIDs with caution and under medical supervision due to potential effects on kidneys, stomach, and blood pressure.
It is very important to take colchicine exactly as prescribed. Missing doses can increase the risk of attacks and complications.
Outlook and Possible Complications
The most serious complication of untreated FMF is amyloidosis, where protein deposits build up in organs — most commonly the kidneys. This can lead to kidney damage and even kidney failure. Other complications include:
- Joint damage from repeated inflammatory attacks
- Fertility issues (though this is more relevant for younger people)
- Malabsorption — difficulty absorbing nutrients from food
The good news is that with regular colchicine treatment, the risk of amyloidosis drops dramatically. Most people who stay on treatment can manage their condition well.
When to See Your Doctor
Contact your health care provider if you or your child develops symptoms of this condition.
Seniors should seek medical attention if they experience sudden severe abdominal pain, high fever with no clear cause, chest pain with breathing difficulty, or joint swelling that limits movement. If you already have an FMF diagnosis, contact your doctor if your attacks become more frequent or severe, or if you notice new symptoms.
Living With FMF: Tips for Seniors
Living with a chronic inflammatory condition like FMF requires attention to both medical treatment and daily wellness habits. Here are some tips for seniors managing FMF:
- Stay consistent with medication — Take colchicine daily as prescribed. Use a pill organizer or set a daily alarm to avoid missing doses.
- Keep a symptom diary — Track when attacks happen, how long they last, and what symptoms you experience. This helps your doctor adjust your treatment plan.
- Manage stress — Stress can trigger FMF attacks. Gentle activities like walking, stretching, meditation, or spending time with loved ones can help.
- Stay hydrated and eat well — A balanced diet supports your overall health and helps your body cope with inflammation.
- Know your triggers — Some people find that certain foods, infections, or physical exhaustion trigger attacks. Learning your personal triggers helps you avoid them.
- Build a care team — Work with a rheumatologist or a doctor experienced in autoinflammatory diseases. A primary care physician who understands FMF is also important.
- Connect with others — Support groups and patient communities can provide valuable advice and emotional support for living with a rare disease.
This article is based on information from the National Institutes of Health (MedlinePlus) – Familial Mediterranean fever, reviewed August 2024. Always consult your healthcare provider for medical advice specific to your situation.
