Lying in bed and feeling itchy all over

When you lie in bed, you will feel itchy all over your body, which will make you unable to fall asleep. This symptom of systemic itching is quite difficult to cure in the first time. Most patients need to take long-term medication for conditioning. Also, don't keep your mind in a tense state, and keep a calm mind.

1. Generalized pruritus is often a concomitant or initial symptom of many systemic diseases, such as uremia, biliary cirrhosis, hyperthyroidism or hypothyroidism, diabetes, malignant tumors and neuropsychiatric pruritus. The external causes of systemic pruritus are related to environmental factors (including humidity, season, biological or chemical stimulation in the working environment), topical medications, the use of highly alkaline soaps, and the decreased secretion function of the patient's sebaceous glands and sweat glands leading to dry skin.

2. The causes of localized pruritus are sometimes the same as those of systemic pruritus, such as diabetes. Anal pruritus is often related to pinworm disease, hemorrhoids, anal fistula, etc. Vulvar pruritus is often related to leucorrhea, trichomoniasis, vaginal fungal disease, gonorrhea and cervical cancer. Scrotal pruritus is often associated with local high skin temperature, sweating, friction, and fungal infection. The occurrence of itching is mainly caused by the release of chemical mediators such as histamine, substance P, kinins and proteases.

Internal factors

(1) Visceral diseases Functional or organic diseases of the stomach, intestines, liver, kidneys and other visceral organs, especially patients with diabetes, uremia, and liver disease, often have generalized itching; patients with certain tumors such as leukemia, lymphosarcoma, Hodgkin's disease, mycosis fungoides, and malignant lymphoma experience skin itching.

(2) Neuropsychiatric disorders such as cerebral arteriosclerosis, tuberculosis dorsalis, and neurasthenia can also cause systemic or localized skin itching. In clinical practice, it is common for neurotic patients to have some kind of hallucination, thinking that there are bugs in their skin and feeling itchy, and some develop a habit of scratching.

(3) Endocrine disorders: Some women often experience pruritus during pregnancy, which usually disappears after delivery. Menstrual disorders or ovarian diseases often cause vulvar pruritus. Skin itching in the elderly may be related to the decrease in sex hormone levels in the body. Patients with thyroid disease may experience pruritus.

In addition to the above, infection of lesions, drugs, diet (alcoholism), food allergies, and parasitic or fungal infections can all cause systemic or localized itching.