If the lump is near the spinous process of the 7th cervical vertebra, it is usually formed by a thick subcutaneous fat pad, which is often called the “rich bag”. However, this rich bag can also be caused by cervical spondylosis, for example, the cervical vertebrae’s physiological curvature is straightened or even backward bowed, or the local small joints are dislocated, which can also form localized lumps. In addition, if it is a localized subcutaneous mass, it may be a lipoma, fibroma or sebaceous adenoma, which are benign masses and can be identified by local ultrasound, and can be surgically removed if necessary.