What causes soreness and heaviness in the arms during sleep at night?

Generally, soreness and heaviness in the arm during nighttime sleep may result from physiological factors such as poor sleeping posture, or may be related to pathological causes such as tendonitis or shoulder periarthritis. Targeted treatment should be conducted under medical guidance. The specific analysis is as follows:

I. Physiological Causes

Prolonged poor sleeping posture at night can compress the arm, impairing blood circulation and leading to symptoms such as soreness, weakness, and pain. This condition does not require special treatment; timely adjustment of sleeping posture usually leads to gradual improvement.

II. Pathological Causes

1. Tendonitis

Inflammation of the tendon tissue in the arm, or long-term chronic overuse, can lead to degenerative changes in the tendon's collagen fibers, resulting in arm fatigue, weakness, and accompanying pain and stiffness. It is recommended to consult a doctor for treatment with medications such as enteric-coated aspirin tablets, acetaminophen tablets, or ibuprofen sustained-release capsules to relieve pain symptoms.

2. Shoulder Periarthritis (Frozen Shoulder)

Inflammatory irritation of soft tissues around the shoulder leads to degenerative changes, restricting shoulder joint movement. If the shoulder is compressed during sleep, it may cause arm soreness and discomfort. Patients may benefit from physical therapy or acupuncture. When necessary, a doctor may recommend medications such as nimesulide granules, celecoxib capsules, or diclofenac sodium sustained-release tablets.

In addition, similar symptoms may also arise from conditions such as tennis elbow, rotator cuff injury, or cervical spondylosis. It is important to get adequate rest and avoid excessive fatigue in daily life.