The occurrence of muscle soreness and weakness is considered to be related to muscle fatigue, myofasciitis and infectious diseases.
1. Muscle fatigue: when the body is in strenuous exercise, blood circulation is intensified, and the demand of muscle tissues for oxygen is also increased, because of the lack of oxygen, resulting in the glucose in the muscle can not be fully oxidized, which is converted into lactic acid, triggering muscle fatigue, soreness and weakness and other symptoms.
2. Myofasciitis: If you maintain a poor posture for a long time, or cold and other factors cause aseptic inflammation, can also appear muscle pain and weakness of the symptoms.
3. Infectious diseases: malaria, mumps and other diseases can lead to persistent high fever, which can lead to chills and muscle pain and weakness.
There may be other reasons for muscle pain and weakness, so it is recommended to consult a doctor and get appropriate treatment.