Moles will cause certain harm to the body, including bleeding, infection and malignant changes.
1. Bleeding: when a mole is deeper, it will cause the capillaries under the skin to rupture and cause bleeding.
2. Infection: pathogenic microorganisms may cause infection through some tiny trauma or broken skin, which may be manifested as red, swollen and painful skin, and may secrete purulent secretion.
3. Malignant transformation: After the mole is gouged and rotted by physical stimulation, malignant transformation may occur.
Generally speaking, it will not cause serious impact on the body, and should avoid external friction and other stimuli. For moles with abnormal change of shape or fast growth rate, it is recommended to go to the hospital for medical treatment.