Raynaud’s phenomenon occurs in some patients with SLE. Raynaud’s phenomenon is damage to blood vessels and is clinically characterized by episodic finger artery spasm. Once the finger artery spasms, it leads to color changes such as whitening, purplish and reddening of the fingers successively after cold stimulation, and the hands become cold. If the symptoms are not relieved for a long period of time, ischemia occurs in the fingertips, and ulcers can occur with slight external force, or even without external force. Ulcers are more difficult to treat because there is no blood supply. Once the above symptoms occur, you should take timely measures, such as hands need to be kept warm and hand warmers need to be carried around. It is also important to move the limbs regularly to return the body temperature to normal. In addition, trauma should be avoided. Skin breakdown and ulcers are difficult to heal, and the skin should be protected. Raynaud’s phenomenon, should consider whether there is a systemic lesion, need to go to the hospital for detailed examination.