What causes soreness and pain in the right shoulder?

Right shoulder soreness and pain may result from conditions such as cervical spondylosis, periarthritis of the shoulder (frozen shoulder), or excessive physical strain. Patients who habitually bend forward or lower their heads for prolonged periods—or who have experienced cervical trauma—may develop cervical spondylosis, leading to right shoulder discomfort. Exposure of the shoulder to cold air over an extended period or chronic heavy loading may trigger periarthritis of the shoulder, causing right shoulder soreness and pain. Additionally, lifting or pulling excessively heavy objects within a short timeframe can cause muscle strain in the right shoulder, resulting in soreness and pain.