A mole itself is a benign skin tumor composed of mole cells. It is not that a mole will suddenly grow on a patient’s body; in fact, the patient will have an increasing number of moles as he or she grows older gradually. This is not only true for one person, but actually exists in more or less on everyone. The causes of moles are often complicated. After birth, it may be due to long time sun exposure, changes in one’s own hormone level, taking medications, or having local trauma stimulation, all of which may lead to the accumulation of local mole cells, and in fact, moles may occur in every part of the body. Therefore, patients do not need to be particularly afraid of the sudden occurrence of a mole on a body part, they just need to observe it closely. Not every hemorrhoid will become malignant or will represent a particularly serious condition.