What causes small red spots on the legs?
Disease description:
I noticed some small red spots on my legs these days, and I don't know what caused them. What are the possible reasons for small red spots appearing on the legs?
Doctor's answer (1)
Dr. Liu Wenmin
Common causes of small red spots on the legs include the following:
1. Folliculitis: This is one of the most common causes, usually resulting from bacterial infection of the hair follicles, often by Staphylococcus aureus. The red spots may be accompanied by itching and sometimes have a pus-filled center. Treatment includes topical application of antibiotic ointments, such as mupirocin ointment.
2. Allergic reaction: Allergies to food, medications, clothing, cosmetics, or other substances may also cause red spots on the skin. When accompanied by symptoms such as itching and swelling, it is important to avoid contact with the allergen and seek medical attention promptly.
3. Viral infection: In the early stages of illnesses such as chickenpox or measles, red spots may appear on the skin. Additionally, the herpes simplex virus may cause red spots on the legs accompanied by blisters.
4. Eczema: This condition is associated with contact allergens, dry skin, or genetic factors. Small red spots may be accompanied by itching, redness, dryness, or flaking of the skin. Treatment typically involves using antihistamine medications to relieve itching and applying topical corticosteroid creams.
5. Fungal infection: Fungal infections such as athlete's foot or jock itch often cause red spots on the legs, accompanied by symptoms like itching and peeling skin.
The above list includes only some common causes and is not exhaustive. If small red spots persist on your legs or are accompanied by other symptoms, it is recommended to seek timely medical evaluation for accurate diagnosis and treatment.
