A yellow neck can be caused by several factors, including:
- Jaundice: This condition occurs when the liver is unable to process bilirubin, a yellow pigment that is a byproduct of red blood cell breakdown. Bilirubin builds up in the blood and spills into the tissues, causing a yellow discoloration of the skin, eyes, and mucous membranes.
- Tinea versicolor: This is a fungal infection that affects the skin, causing light or dark patches, sometimes with a yellow hue. It's more common in warm, humid climates.
- Sweat staining: Sweat can stain the skin, especially in areas that are prone to perspiration.
- Tonsillitis: Infected tonsils may have a yellow or white coating, which can be seen in the neck area.
- Mononucleosis: This viral infection can cause swollen lymph nodes in the neck, which may appear yellow.
- Yellow fever vaccine: Some people experience a yellow discoloration of the skin after receiving the yellow fever vaccine.
- Head and neck radiotherapy: Radiation therapy in this area can cause skin changes, including yellowing.
If you are concerned about a yellow neck, it's best to consult a doctor. They can determine the underlying cause and recommend appropriate treatment.