All three cause itching and welts, and are totally inconvenient and, let’s be honest, gross.

这三种虱子都能引起瘙痒，让人身上挠痕累累，特别麻烦，而且，咱们实话实说，还很恶心。

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Nuclear radiations cause itching and tingling of the skin.

核辐射能使皮肤感到发痒和刺痛。

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Chiggers, also known as harvest mites, can cause itching, redness and crusting in dogs.

恙螨，又称沙蚤，能引起患犬瘙痒、红斑、皮屑。

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Inflammatory and hair loss conditions of the scalp are rare but can also cause itching.

CNN: Why is my scalp so itchy?

Inflammation of the hair follicles or bacterial infection of the scalp can also cause itching.

CNN: Why is my scalp so itchy?

They can grow to be large and cosmetically unsightly, but typically are painless or cause only itching or burning (in 20 percent).

CNN: Is the HPV shot advised for teen males?