Lentigo, also known as brown spots or age spots, are flat, brown, tan, or black spots that develop on the skin due to excess production of the pigment melanin. They are most commonly found on the face, hands, and arms, and are more common in people with fair skin, red or blond hair, and blue or green eyes.
Lentigo are usually benign and do not pose any health risks. However, they can be unsightly and may make people self-conscious about their appearance.
The most common cause of lentigo is sun exposure, especially in people who have had severe or prolonged sunburns or who have spent a lot of time in the sun without adequate sun protection. Other risk factors include a weakened immune system, certain medications, and certain genetic conditions.
If you are concerned about lentigo on your skin, it is important to see a dermatologist for evaluation and treatment. Our BJC dermatology team is located at Missouri Baptist Medical Center in St. Louis, Missouri.
Our BJC dermatologists can diagnose lentigo by examining the affected skin and may also perform a biopsy, in which a small sample of tissue is taken from the lesion and examined under a microscope.
Treatment for lentigo depends on the size, location, and number of spots, as well as the patient's overall health and preferences. Options include topical medications, cryotherapy (freezing the spots with liquid nitrogen), laser therapy, and chemical peels.
It's important to see an expert dermatologist for the diagnosis and treatment of lentigo, as early detection and treatment can help improve the appearance of the affected skin. It's also important to protect your skin from the sun by wearing protective clothing and using sunblock with a high SPF to help prevent the development of new lentigo.