Weakness is a lack of physical or muscle strength. You may feel that you need to make extra effort to move your arms, legs, or other muscles. Generalized weakness means that you feel weak in most areas of your body. Another type of weakness may affect just one muscle or group of muscles.
You may feel weak and tired after you have done too much activity, such as taking an extra-long hike. This is not a serious problem. It often goes away on its own.
Feeling weak can also be caused by medical conditions like thyroid problems, depression, or a virus. Sometimes the cause can be serious. Your doctor may want to do more tests to try to find the cause of the weakness.
The doctor has checked you carefully, but problems can develop later. If you notice any problems or new symptoms, get medical treatment right away.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Call your doctor or nurse call line now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor or nurse call line if:
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Current as of: March 20, 2017
Adam Husney, MD - Family Medicine
& Donald Sproule, MDCM, CCFP - Family Medicine & Kathleen Romito, MD - Family Medicine & William H. Blahd, Jr., MD, FACEP - Emergency Medicine
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