If you find a hard lump on your chest, to determine the nature of this hard lump, it is recommended to go to the hospital for a local ultrasound to clarify the diagnosis. Usually some swellings on the surface of the chest or under the skin, the most common ones are sebaceous warts, sebaceous adenomas, fibroids, lipomas, etc. If the ultrasound confirms that these are benign masses, surgery can usually be given to remove them. These benign masses usually do not deteriorate, so if they are not too obtrusive, for example, they do not affect the usual work or life, they do not affect the appearance, they are not painful, and they do not grow particularly fast in the near future, they do not need to be treated and are mainly observed.