What causes generalized skin itching and red bumps?
Disease description:
Last night, I didn't know what happened, but my entire body's skin became itchy with red bumps, and I couldn't sleep well all night. I would like to ask what causes widespread skin itching and red bumps?
Doctor's answer (1)
Dr. Wang Xiaoyan
Generalized itchy skin with red bumps may be caused by various factors, including:
1. Allergy: Such as eczema, urticaria, and contact dermatitis, which may result from allergens like food, medications, pollen, or chemicals. These often present with symptoms such as skin redness, swelling, and itching.
2. Insect bites: Particularly in summer, insects pierce the skin with their mouthparts, and their venom or saliva enters the skin, causing an inflammatory reaction with red bumps and itching.
3. Scabies: Caused by infection with the scabies mite,表现为 (manifesting as) small red papules on the skin, worsening of itching at night, and commonly seen in individuals with weakened immunity or poor living conditions.
4. Neurodermatitis: Due to factors such as excessive fatigue and reduced immunity leading to nerve damage, causing skin itching and lichenification.
