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General Practice 2023

Myositis: what é, main types, causes and treatment

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Myositis: what é, main types, causes and treatment
Myositis: what é, main types, causes and treatment

Myositis is an inflammation of the muscles that causes them to weaken, causing symptoms such as muscle pain, muscle weakness and increased sensitivity of the muscles, which leads to difficulty in performing some tasks such as climbing stairs, lifting the arms, stand, walk, or lift a chair, for example.

Myositis can affect any region of the body and, in some cases, the problem resolves itself with treatment, which usually involves the use of medication and exercises to maintain muscle strength. However, in other cases, myositis is a chronic, lifelong problem that can be relieved with treatment.

Possible symptoms

Symptoms associated with myositis often include:

  • Muscle weakness;
  • Constant muscle pain;
  • Weight loss;
  • Fever;
  • Irritation;
  • Loss of voice or nasal voice;
  • Difficulty swallowing or breathing.

These symptoms may vary according to the type and cause of myositis, and therefore, whenever abnormal muscle fatigue is suspected, it is important to consult a general practitioner or a rheumatologist, to identify the problem and start treatment suitable.

Main causes and how to treat

According to its cause, myositis can be divided into several types. Some of these types are:

1. Ossifying myositis

Myositis Ossificans Progressiva, also called Fibrodysplasia Ossificans Progressiva, is a rare genetic disease in which muscles, ligaments and tendons gradually turn into bone, due to trauma such as broken bones or muscle damage.Its symptoms usually include loss of movement in the joints affected by the disease, leading to the inability to open the mouth, pain, deafness or difficulty breathing.

How to treat: there is no treatment capable of curing myositis ossificans, however, it is important to follow up frequently with the doctor to relieve symptoms that may arise. Learn more about myositis ossificans.

2. Infantile myositis

Child myositis affects children between 5 and 15 years old. Its cause is not yet known, but it is a disease that causes muscle weakness, reddened skin lesions and generalized pain, which leads to difficulty climbing stairs, dressing or combing hair, or difficulty swallowing.

How to treat: with the use of corticosteroids and immunosuppressants prescribed by the pediatrician, as well as regular physical exercise to help maintain muscle strength.

3. Infectious myositis

Infectious myositis is usually caused by an infection such as the flu or even trichinosis, which is an infection that occurs by eating raw or undercooked pork or wild animals, causing symptoms such as muscle pain, weakness muscle and in the case of flu, runny nose and fever.

How to treat: the disease that is causing the inflammation of the muscles must be treated, however, the doctor may also prescribe corticosteroid drugs such as Prednisone to reduce the inflammation faster.

4. Acute viral myositis

Acute viral myositis is a rare type of the disease that makes the muscles inflamed, weakened and painful. HIV and common cold viruses can cause this muscle infection. Symptoms develop quickly and the patient may even be unable to get out of bed with so much pain and weakness during the infection.

How to treat: use of antiviral drugs or corticosteroids prescribed by the doctor, to relieve symptoms. In addition, it is still recommended to maintain adequate fluid intake to avoid dehydration, as well as rest until the symptoms disappear.

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