What causes soreness, pain, and weakness in the left arm?

Nov 28, 2024 Source: Cainiu Health
Disease description:

Recently, my left arm has been experiencing persistent soreness and weakness, sometimes making it difficult to lift. I'm not sure whether this is due to moving heavy objects recently or sleeping on it awkwardly at night. This condition has lasted for several days and is significantly affecting my daily life. I would like to know what could be causing this soreness and weakness in my left arm.

Doctor's answer (1)
Dr. Chen Jian

Left arm soreness and weakness is a common symptom that may be caused by various factors. The following are some common causes:

1. Lactic acid buildup: Accumulation of lactic acid and metabolic waste in the arm after exercise, or maintaining the same posture for a prolonged period without timely rest, may lead to soreness and weakness in the left arm.

2. Muscle or bone problems: Overuse, strain, sprains, or fractures can cause muscle and bone pain accompanied by a feeling of weakness. Maintaining the same posture for a long time, such as working at a computer, may also lead to muscle tension and pain.

3. Nerve diseases: Nerve compression or injury, such as cervical spondylosis or sciatica, can cause arm soreness and weakness. Peripheral nerve disorders, such as diabetic neuropathy, can also affect nerve function, leading to pain and weakness.

4. Circulatory system problems: Poor blood circulation, such as blood clot formation, may lead to local ischemia, causing arm soreness and weakness.

5. Diabetes: If the condition is severe, it may also affect normal nerve function, leading to left arm soreness and weakness.

When experiencing such symptoms, it is important to seek medical examination at a hospital immediately.