What is the cause of myositis?
Olivia Shea
Updated on February 27, 2026
Myositis refers to any condition causing inflammation in muscles. Weakness, swelling, and pain are the most common myositis symptoms. Myositis causes include infection, injury, autoimmune conditions, and drug side effects. Treatment of myositis varies according to the cause.
What are the signs and symptoms of polymyositis?
What are the symptoms of polymyositis?
- Muscle pain and stiffness.
- Muscle weakness, particularly in the belly (abdomen), shoulders, upper arms, and hips.
- Joint pain and stiffness.
- Trouble catching your breath.
- Problems with swallowing.
- Irregular heart rhythms, if the heart muscle becomes inflamed.
How do you know if you have myositis?
Myositis is the name for a group of rare conditions. The main symptoms are weak, painful or aching muscles. This usually gets worse, slowly over time. You may also trip or fall a lot, and be very tired after walking or standing.
When does myositis start?
The risk of developing IBM increases with age and usually appears in patients over the age of 50; however, patients may develop symptoms as early as their 30s.
Can polymyositis be cured?
Although there’s no cure for polymyositis, treatment can improve your muscle strength and function. The earlier treatment is started in the course of polymyositis, the more effective it is — leading to fewer complications.
Can polymyositis cause death?
The 5-year survival rate for adults with polymyositis, according to Merck Manual, is 75 to 80%. Death may result from consequences of severe and progressive muscle weakness. People who have cardiac or pulmonary involvement seem to have a worse prognosis. That can also be said of polymyositis patients with cancer.
Is myositis a symptom of coronavirus?
Recent Findings COVID-19 is associated with a viral myositis attributable to direct myocyte invasion or induction of autoimmunity. COVID-19-induced myositis may be varied in presentation, from typical dermatomyositis to rhabdomyolysis, and a paraspinal affliction with back pain.
What is the best diet for myositis?
There is no specific myositis diet that is recommended. In general, it’s important to eat a balanced diet rich in fruits and vegetables. Omega 3 fats, found in oily fish such as sardines and salmon, walnuts and olive oil, are important to include as they have an anti-inflammatory effect on the body.
What is the meaning of myopia in the Dictionary?
dictionary thesaurus. noun. my·o·pia | mī-ˈō-pē-ə . 1 : a condition in which the visual images come to a focus (see focus entry 1 sense 4) in front of the retina of the eye resulting especially in defective vision of distant objects : nearsightedness She wears glasses to correct her myopia.
What are the symptoms of myopia in children?
Chances are the only symptom is that more distant objects are blurred. You may also notice: 1 Headaches. 2 Eye strain. 3 Eye fatigue when you try to see objects more than a few feet away. 4 Children with myopia often have trouble reading the blackboard at school.
What is myositis and how is it characterized?
Myositis is a general description for chronic, progressive inflammation of the muscles. Some types of myositis are associated with skin rashes.
When do the symptoms of drug-induced myositis start?
These symptoms usually begin several weeks after a muscle injury, especially a bruise. Drug-induced myositis. Symptoms include muscle soreness, pain and weakness. These symptoms usually begin soon after a person starts taking a new drug or a combination of drugs.