Whether subcutaneous nodules are harmful or not depends on the nature of subcutaneous nodules, if they are benign nodules, they are not harmful to the body, if they are malignant nodules, they are very harmful to the body. 1. Benign nodules: benign subcutaneous nodules, such as: lipoma, fibroma, sebaceous cysts, lymphadenitis, etc., if there is no increase in size, and there is no pain when touched by hand, it is not harmful to the human body, and generally do not need special treatment. If there is pressure or rapid growth, it can be surgically removed; if there is infection, it can be treated with topical mupirocin ointment and other anti-infective treatments. 2. Malignant nodules: most of the cases are caused by lymphatic transfer of various malignant tumors to the subcutaneous lymph nodes, often without obvious pain, hard texture, poor mobility, easy to fuse. Malignant nodules are very harmful to the human body, in addition to the pain is difficult to affect the quality of life, the deterioration of the condition will also threaten the patient’s life. If you find subcutaneous nodules, you should go to the hospital immediately to confirm the nature of the subcutaneous nodules through pathological examination, and choose the disposal measures under the guidance of professional doctors to ensure that your health is not affected.