Dermatology Hospital of Chinese Academy of Medical Sciences
Li Chengrang
(Deputy Chief Physician) Review
Dermatology Hospital of Chinese Academy of Medical Sciences
itchIt is a kind of skin itching withoutPrimarySkin damageOfskin diseasesymptom.According to the scope and location of skin itching, it is generally divided into two categories: systemic and localized.
TCM disease name
Pruritus
Foreign name
pruritus
Visiting department
the skin department
Common causes
Environmental factors, external drugs, certain stimuli, primary diseases, etc
common symptom
Paroxysmal itching, severe at night, with scratches, blood scabs, pigments, etc
It is commonly seen in adults, and itching often starts at one place and gradually extends to the whole body.It is often paroxysmal, especially at night. In severe cases, it is persistent itching with paroxysmal exacerbation. Drinking, coffee, tea, emotional changes, spicy food stimulation, mechanical scratching, warm bedding, and even some hints can all promote the onset and aggravation of itching.Frequent secondary scratchesencrusted blood, pigmentation, eveneczemaAnamorphosisLichenoid transformation、Pyodermaas well asLymphangitisandlymphadenitis。
(1) Senile pruritusIt usually occurs in the elderly, and the trunk is often the most itchy. It is mostly caused by factors such as sebaceous gland dysfunction and dry skin. Female patients may be a manifestation of postmenopausal syndrome.
(2) Pruritus in winterIt is mostly seen in adults, and children can also get sick.It usually occurs in the late autumn and winter when the temperature changes sharply. The patient often starts itching when entering a warm room or undressing before going to bed.
(3) Pruritus in summerOftenDamp heatItch caused by inducement, summersweatThe increase may aggravate itching.
2. Localized pruritus
(1) Anal pruritusMostly seen in middle-aged men, withEnterobiasisChildren can also get sick.Itching is generally confined to the anus and its surrounding skin, and can sometimes spread to the perineum, vulva and scrotum.Due to frequent scratching, only the anal skin is hypertrophic, which can also be lichen like oreczemaAnamorphosis, etcsecondaryDamage.
(2) Pruritus scrotumItching is mainly confined to the scrotum, sometimes involving the penis, perineum and anus.Due to constant scratching, it causes lichen like changeseczemaAnamorphosis andSecondary infectionEtc.
(3) Pruritus vulvaeItching often occurs on the large and small labia.Due to constant scratching, the labia often has hypertrophic skin and maceration,clitorisAnd vaginal mucosa may have redness, swelling and erosion.
diagnosis
Announce
edit
According to the fact that there was only itching at the beginning, but noPrimary skin lesionsIt can be confirmed.In order to find the cause of the disease, we should inquire about the medical history in detail, and do a comprehensive physical examination and necessarylaboratory examination 。
The key to prevention and treatment is to find the cause and avoid the inducing factors.Avoid scratching, rubbing, hot water scalding and other methods to relieve itching.Life should be regular, clothes should be soft, don't bathe too often.Avoid drinkingStrong teaAnd ediblePepper, pepper andmustardSuch spicy and stimulating food.Patients with mental tension and restlessness should pay attention to rest and properly change the badenvironment。
