Pimples on the chest are not a precursor to cancer, they are the result of a skin condition. Skin cancer manifests itself as symptoms of erythema, papules, and skin breakdown, and usually does not manifest itself as pimples. Acne on the chest may be caused by dense follicular sebaceous glands in the area, which secrete large amounts of oil that is not discharged to the skin surface in time, thus forming closed acne. Some patients have acne on the chest due to bacterial infections, such as Propionibacterium acnes infection, and some people have acne due to endocrine dysfunction, improper diet, improper cleaning or frequent scratching. In addition, fungal infections can also cause pimples on the chest. You can usually take oral antifungal drugs, loratadine tablets, etc., and rinse locally with sodium bicarbonate solution, hydrogen peroxide solution, and compound boric acid solution to relieve symptoms. Patients should usually pay attention to local hygiene, eat regularly, ensure sufficient sleep, do not stay up late, and eat more fresh vegetables and fruits.