hair

Hair is an appendage to the skin and is an oblong columnar keratinous structure. The part of the exposed skin is called "hair shaft", and the part buried in the skin is called "hair root", and the end of the hair root is swollen and has a shape of onion, which is called "hairball". Hair can usually be divided into bristles and bristles. Hard bristles, darker colors, can also be divided into two types called long hair, such as hair, beard, mane, pubic hair and so on. The other is called short hair, such as eyebrows, eyelashes, ear hair and so on. The hair is soft and light, mainly found on the face, limbs and torso. Basic Information Specialist classification: growth and development check classification: other inspection Applicable gender: whether men and women apply fasting: not fasting Tips: Before the inspection, it is forbidden to dye hair, curl hair, and use a lot of hair removal cream. Normal value Observe whether the hair shaft and hair root are abnormal (lO-100 hairs at a time), providing a simple and feasible laboratory basis for clinicians to diagnose and identify hair types. Different races are divided into hairs of different colors. People's hair is not the same, some people are oily, and some people are dry. Clinical significance Abnormal results The amount of melanin in the cortex is small, and there are many bubbles. Because of the reflection of light generated by the vacuoles, the color of the hair is lightened to become white flowers. After being old, the hair can be thinned and thicker, which is more common in male-type hair loss. When the protein is deficient, the hair is thin, fine, dry, brittle, dull, and easy to peel off. Need to check the juvenile or young white hair, hair loss, sudden increase in sebum hair. Low results may be diseases: baldness, male androgenetic alopecia, rosary hair, skin sputum, pediatric congenital leukocyte granule abnormal syndrome considerations Contraindications before examination: hair dyeing, hair curling, and a large amount of hair removal cream. Requirements for inspection: as long as you follow the doctor's request and wait for the result. Inspection process The skin was observed with the naked eye, and many fine wrinkles and different grooves were observed. The deep grooves divide the skin into differently shaped leather areas, some like triangles and others like polygons. The skin groove of the flexible and hyperactive parts such as the palm, wrist and neck is deep and obvious, and the separated skin area is also obvious. If you look at the skin with a magnifying glass, we can see that the surface of the skin is made up of many "small cockroaches" (ie, the grand squats) and "small grooves" (ie, the concave portions). Under the microscope, the skin of the human body is composed of three parts: the epidermis, the dermis and the subcutaneous tissue. Not suitable for the crowd Inappropriate people: hair dyers. Adverse reactions and risks May cause hair loss.