Sudden growth of moles on the right hand may be caused by spider nevus, sebaceous nevus, pigmented nevus and so on.
1. Spider nevus: Spider nevus is usually formed due to the expansion of the end branches of small arteries in the local skin. It is mainly triggered by the stimulation of estrogen in the body. For patients with cirrhosis of the liver, viral hepatitis and other diseases, due to liver damage, the metabolic ability of the liver will decrease, and it is unable to inactivate estrogen in the body, which will also cause spider nevus.
2. Sebaceous nevus: when patients suddenly develop nevus on their right hand, it may also be caused by sebaceous nevus, which is a kind of misshapen tumor caused by abnormal proliferation of sebaceous glands and dermis.
3. Pigmented nevus: if the patient is exposed to the sun for a long time, it will activate the local melanocytes, thus producing a large number of melanin particles, which will precipitate locally and cause the patient to develop nevus on the right hand.
When the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment.