Freckles and dark spots are “a measure of your lifelong sun damage,” says Dr. Macdonald. Most sun damage occurs during childhood and teen years and can increase your risk for skin cancer. Keep an eye on any changes in your skin from moles to raised lesions or sores that won’t heal.
Excess fine white hairs
Everyone knows skin cancer shows up on the epidermis. But sometimes internal cancers such as gastrointestinal (GI), lung or ovarian, can have skin symptoms, too, thought to be a response to hormones or substances released by the tumour. A condition called acquired hypertrichosis lanuginosa is when people develop excess fine white hairs, usually on their face, that’s known as a ‘malignant down’ and is an ominous sign of internal malignancy most commonly associated with lung and colon cancers.
Dehydration can cause your skin to lack lustre and your face can become sallow looking, explains Dr. Macdonald. Dry winter weather can also play a role in a sallow complexion. Drinking enough water and getting ample sleep can improve the look of your skin. Certain makeup mistakes could also be making your skin look dull.