Skin lesions refer to any variation in skin color or texture anywhere on the body. Some skin lesions are present at birth, such as moles, freckles, or birthmarks. Others are acquired over time, such as acne, warts, allergies, sunburn, or abrasions.
Most skin lesions are harmless. However, it is important to keep an eye on them because they can change over time, which may be indicative of a serious problem. For example, one pigmented lesion that can occur on the foot and lower extremity is malignant melanoma. Some other conditions that affect the feet include:
Actinic Keratosis
A condition called actinic keratosis is another cancer-causing lesion that can occur on the feet. It is most commonly found in sun-exposed areas, such as the top of the foot. Treatment consists of freezing the lesions with liquid nitrogen or sharp excision.
Kaposi's Sarcoma
Kaposi’s Sarcoma is another cancerous lesion that may appear on the soles of the feet of people with HIV infection or AIDS. Kaposi’s Sarcoma lesions are irregular in shape and have a purplish, reddish, or bluish-black appearance. They tend to spread and form large plaques or become nodular. The nodular lesions have a firm, rubbery appearance.
.png "Learn how hammertoes develop, which symptoms to watch for, and how professional treatment can reduce pain and improve alignment.")
September 4, 2026
Learn how hammertoes develop, which symptoms to watch for, and how professional treatment can reduce pain and improve alignment.
.png "Learn how to recognize a foot corn, what causes it, and how professional podiatry treatment can relieve pain and prevent recurrence.")
August 7, 2026
Learn how to recognize a foot corn, what causes it, and how professional podiatry treatment can relieve pain and prevent recurrence.
June 13, 2025
Flat feet affect mobility and comfort across all ages. Learn how Idaho Foot & Ankle Center helps patients move with confidence through expert care.
August 27, 2024
As the leaves begin to change and the temperatures drop, it’s time to swap out your summer sandals for cozy fall boots. However, with this change in footwear comes the need to adjust your foot care routine.