Yaws is a chronic bacterial infection caused by Treponema pallidum pertenue, a close relative of the bacterium that causes syphilis. It primarily affects the skin, bones, and joints, and is most common in warm, humid regions, particularly in rural communities with limited access to healthcare.

The disease usually starts with a small, painless sore—often called a "mother yaw"—that can appear on the legs, arms, face, or buttocks. If not treated early, it can spread and lead to multiple skin lesions, bone pain, and disfigurement, especially in children.

Yaws is highly contagious through skin-to-skin contact but can be completely cured with a single dose of antibiotics, usually azithromycin. Early diagnosis and mass community treatment are key to controlling outbreaks and preventing long-term damage.

This is where anatomy posters become incredibly helpful tools in health education. In clinics, schools, and community centres, visual aids can help people better understand:

• What yaws lesions look like in early and advanced stages
• How the infection spreads through direct contact
• Which parts of the body are typically affected (skin, joints, and bones)
• How antibiotics work to cure the disease and stop transmission

Anatomy posters that clearly show the layers of skin, the progression of lesions, and the impact on bones and joints make it easier for patients and families to recognize symptoms and seek treatment early. They also help break down stigma and misinformation by showing that yaws is treatable and not a result of poor hygiene or personal fault.

Visual education tools empower communities with knowledge, encourage early action, and support public health efforts to eliminate yaws worldwide.