Allergic Skin Disorders (31)

http://www.medicinenet.com/image-collection/ringworm_of_the_hand_picture/picture.htm

Worms don't cause ringworm. Rather, this superficial skin infection, also known as tinea, is caused by fungi called dermatophytes. Fungi are microscopic organisms that can live off the dead tissues of your skin, hair, and nails, much like a mushroom can grow on the bark of a tree.
Ringworm is characterized by a red ring of small blisters or a red ring of scaly skin that grows outward as the infection spreads. Though children are especially susceptible to catching ringworm, it can affect adults as well.

Image: Courtesy of Dr. Lucille K. Georg/ Centers for Disease Control and Prevention (CDC)

Text: "Understanding Ringworm - the Basics", WebMD Medical Reference

Guide to understanding the Image Collection categories:

• Allergic Skin Disorders (31)
Allergic conditions such as eczema and contact dermatitis

• Viral Skin Diseases (26)
Disorders caused by viruses such as shingles, cold sores and measles

• Bacterial Skin Diseases (29)
Disorders caused by bacterial infections such as acne and folliculitis

• Fungal Skin Diseases (17)
Disorders such as ringworm, athletes foot and yeast infections

• Bites and Infestations (27)
Insect bites, stings and infestations such as scabies & head lice

• Noncancerous, Precancerous and Cancerous Tumors (56)
Skin disorders such as moles, skin tags and various skin cancers

• Diseases of Pigment (26)
Pigment conditions such as jaundice, melasma and birthmarks

• Papules, Scales, Plaques and Eruptions (47)
Skin conditions such as psoriasis, diaper rash and poison ivy

• Vascular, Lymphatic and Systemic Conditions (48)
Affecting the blood vessels, tissues, organs or the entire body

• Scalp, Hair and Nails (26)
Conditions such as dandruff, ingrown toenails and premature gray hair

• Pregnancy Stages (9)
See stages of pregnancy and fetal development