8 Signs in The Body Which Reveal That You Are Not Healthy

7. Birthmarks and moles

Birthmarks, moles and warts are normal and most of the time they are harmless or benign. However, if you develop a mole or wart in an area that is recently exposed to the sun, it may a symptom of melanoma. Also, if a birthmark or mole suddenly changes colour can be another indication of cancer. Senile and actinic keratosis are triggered by the sun and UV rays can be considered precancerous skin changes.