What causes soreness and weakness in the arms upon waking up in the morning?

Generally, waking up in the morning with sore and weak arms may be caused by improper sleeping posture, overexertion, cervical spondylosis, myofascial inflammation, or periarthritis of the shoulder. Specific analyses are as follows:

1. Improper sleeping posture

If the body position during sleep is incorrect, it may lead to arm compression, resulting in the aforementioned symptoms. Adjusting sleeping posture can help improve the condition.

2. Overexertion

Excessive physical strain during the day may cause muscle spasms, leading to the symptoms described above. Applying heat therapy, massage, and similar methods can help alleviate discomfort.

3. Cervical spondylosis

This is a disease based on degenerative pathological changes that may cause arm soreness and weakness. Treatment may include medications such as ibuprofen sustained-release capsules or acetaminophen tablets, taken as directed by a physician.

4. Myofascial inflammation

Local inflammatory irritation may lead to symptoms such as muscle stiffness and pain, manifesting as limited arm movement. Patients can use a hot water bottle for heat application and employ therapies like manipulation or massage to relieve symptoms. It is recommended that patients take medications such as celecoxib capsules or diclofenac sodium sustained-release capsules as prescribed.

5. Periarthritis of the shoulder

When there is rotator cuff tear or periarthritis affecting the shoulder joint, arm compression during sleep may result in symptoms of arm soreness and pain. Early physical examination, along with imaging studies such as X-ray or MRI of the shoulder joint, are recommended for diagnosis and treatment. Patients are advised to take medications such as ibuprofen sustained-release tablets or enteric-coated diclofenac sodium tablets under medical guidance.

Aside from the causes listed above, osteoarthritis could also be responsible. It is recommended to visit a hospital for proper diagnosis and receive appropriate management according to individual circumstances under a doctor's supervision.