Women’s right arm pain for a few months may be the emergence of cervical spondylosis, right arm strain or joint arthritis. 1. Cervical spondylosis: based on degenerative pathological changes, osteophytes, herniated intervertebral discs, ligament thickening and other manifestations, resulting in adjacent nerves, arteries and other compression and the formation of corresponding syndromes of the disease. If the right side of the nerve root pressure can lead to women’s right arm pain, numbness. 2. Right arm strain: muscle contraction in sports or excessive pulling can cause strain, can appear at the injury of severe pain, obvious pressure pain, localized swelling, bruising, the injured part of the activity is obviously restricted. Often caused by pull-up and sit-up exercises. 3. Right arm arthritis: Inflammatory diseases occurring in the right arm joint and its surrounding tissues, mainly redness, swelling, heat, pain, restricted movement and deformity at the injured joint, which can be caused by bacterial infection and genetic factors. Patients with right arm pain for a few months to understand the specific symptoms and causes of the disease need to go to the hospital for appropriate examination, diagnosis, and timely treatment to avoid delays in the condition.