It's likely that lupus results from a combination of your genetics and your environment. It appears that people with an inherited predisposition for lupus may develop the disease when they come into contact with something in the environment that can trigger lupus. The cause of lupus in most cases, however, is unknown.
In 20% of people who have lupus, a parent or sibling already has lupus or develops it later. About 5% of children born to a parent with lupus will develop the disease. Even in people with no lupus in their family history, other autoimmune diseases are more likely.
Studies suggest that there is an increased risk of developing lupus if a family member has been diagnosed. The majority of lupus cases that develop are referred to as sporadic, which means no known relative has the disease.
Common triggers include:
Being out in the sun or having close exposure to fluorescent or halogen light. Infection. Injury. Stopping your lupus medicines.
Family history: Relatives of people with lupus have a greater chance of developing lupus. Only about 2 percent of children whose mothers have lupus will develop it.
In 65% of patients, symptoms appear between the ages of 16-55, and the ratio of women to men is 15:1. By contrast, late-onset lupus affects women about 8 times more frequently than men—and mainly Caucasian women. Symptoms begin to develop more gradually and are milder after age 50.
Sjogren's syndrome is a relatively common disease, although often under-diagnosed. Sjogren's syndrome can occur alone or in association with other autoimmune diseases, most commonly lupus and rheumatoid arthritis (RA).
With close follow-up and treatment, 80-90% of people with lupus can expect to live a normal life span. It is true that medical science has not yet developed a method for curing lupus, and some people do die from the disease. However, for the majority of people living with the disease today, it will not be fatal.
Kidneys About one half of people with lupus experience kidney involvement, and the kidney has become the most extensively studied organ affected by lupus. Lungs About 50% of people with SLE will experience lung involvement during the course of their disease.
It's likely that lupus results from a combination of your genetics and your environment. It appears that people with an inherited predisposition for lupus may develop the disease when they come into contact with something in the environment that can trigger lupus. The cause of lupus in most cases, however, is unknown.
Weight changes — Lupus can sometimes cause weight loss or weight gain. Weight loss may be unintentional and due to decreased appetite or problems with the digestive system (see 'Digestive system' below). It can also be a side effect of some medications used to treat lupus.
Joint pain is common in lupus, especially in the small joints of the hands and feet. The pain often moves from joint to joint. Joint pain, swelling and stiffness can be the main symptoms for some people with lupus. In most cases, lupus is unlikely to cause permanent damage or change the shape of joints.
With age, symptom activity with lupus often declines, but symptoms you already have may grow more severe. The accumulation of damage over years may result in the need for joint replacements or other treatments.
Stress may cause the same reactions that can occur in any person who does not have lupus. Stress can be associated with (precipitate or initiate) the first appearance of their lupus. Stress may be associated with a flare-up of their already existing disease.
The anti-double stranded DNA (anti-dsDNA) tests are used to help diagnose and monitor lupus, also called systemic lupus erythematosus or SLE, a chronic inflammatory autoimmune disorder in which the immune system mistakenly targets the body's own cells and tissues.
Lupus often causes skin rashes, arthritis, mouth sores, sun sensitivity, hair loss, or kidney problems, but these symptoms don't show up in MS. Even when lupus affects your nervous system, its most common symptoms are migraine, personality changes, seizures, or stroke, but these aren't typical for MS.
Saturated Fat and Trans Fat
Foods that contain saturated fat or trans fat also contain steroids that can contribute to weight gain because they increase your appetite. It is best to limit both as much as possible since being overweight or obese could worsen your lupus symptoms.
Lupus nephritis can also cause high blood pressure (hypertension). If left untreated, it can put you at risk of developing life-threatening problems such as a heart attack or stroke.
In chronic illnesses like lupus the following may occur: Symptoms come and go for months or years before a diagnosis is certain. Laboratory tests may change over the course of treatment. You may not know for months whether a prescribed treatment works; it may not work, and it may be necessary to try another medication.
Lupus flares can be mild to serious, and they do not follow a pattern. However, with treatment, many people with lupus can manage the disease. Anyone can get lupus, but women are more likely to get the disease than men are.
Blood and urine tests.
The antinuclear antibody (ANA) test can show if your immune system is more likely to make the autoantibodies of lupus. Most people with lupus test positive for ANA. But, a positive ANA does not always mean you have lupus.
Viruses that have been linked to lupus include: Cytomegalovirus. Epstein-Barr virus, which causes mononucleosis. Varicella-zoster virus, which causes chickenpox and shingles.
Undifferentiated Connective Tissue Disease
“There are people who have a milder form of an autoimmune disease who just don't meet the classification criteria for lupus. We call that undifferentiated connective tissue disease (UCTD),” says Dr. Petri.
SLE can affect people of all ages, including children. However, women of childbearing ages—15 to 44 years—are at greatest risk of developing SLE. Women of all ages are affected far more than men (estimates range from 4 to 12 women for every 1 man). Learn more about lupus in women.