Dandruff flakes are actually dead skin cells that naturally fall off the scalp — more so if you scratch. Many people think that a dry scalp is synonymous with dandruff, but either a dry scalp or an overly oily scalp can cause excess cells to clump and fall off, forming dandruff flakes.
Not only does your scalp have a plethora of sweat glands, but it also has an abundance of sebaceous (oil) glands, which produce oily sebum. Have you ever scratched your scalp and noticed white, waxy buildup under your nails? That's sebum mixed with dead skin cells.
Little White Flakes
Dandruff flakes are dead skin cells that fall off your scalp. When you have dandruff, your scalp may look scaly or red and feel itchy or raw. Scratching or rubbing your head loosens the flakes.
What are the symptoms of seborrheic dermatitis? Itchy white flakes of skin on your scalp (dandruff). When scratched, the flakes come loose, mix in with your hair, or fall onto your neck and shoulders.
Scalp buildup occurs when an oily secretion called sebum accumulates alongside sweat, hair products, and dead skin cells on the scalp. It can have symptoms similar to those of seborrheic dermatitis, scalp psoriasis, and eczema. For example, each of these conditions can cause flakes to appear in the hair and scalp.
Constant scratching can lead to wounds and scabs, further damaging your scalp. The scalp can also become dry as the outer layer of skin becomes weak and lacks moisture. Scratching leaves your hair weak and your scalp vulnerable.
Do your best to resist the urge to touch your scalp, especially if it's already itchy. Scratching can increase irritation and lead to a vicious cycle. When you touch and scratch, you can also introduce dirt into the mix that can make dandruff worse.
Prolonged periods of not washing can cause cause buildup on the scalp, damaging hair and even impeding its ability to grow, Lamb said. Grime from dirt, oil and hair product can show up within four to six days for people with finer, straighter hair.
Dandruff will appear as white or yellow flakes of dry skin. Lice eggs, also known as nits, look like tiny yellow or white eggs in the shape of a teardrop. Adult lice are darker in color and about the size of a sesame seed. While both conditions can make your skin crawl, they are usually effectively treated at home.
When you don't wash your hair, oils may accumulate on your scalp. This can cause odor on the scalp and hair. If you use hair care products, these can also build up on your scalp and create odors, even if the products themselves smell good.
For the average person, every other day, or every 2 to 3 days, without washing is generally fine. “There is no blanket recommendation. If hair is visibly oily, scalp is itching, or there's flaking due to dirt,” those are signs it's time to shampoo, Goh says.
“It is imperative that the scalp is cleaned on a regular basis. Infrequent hair washing leads to an accumulation of dirt, bacteria and fungus on the scalp. This can cause scalp discomfort in the form of dandruff, severe itching, or a fungal/bacterial infection that could require oral medication.
For mild dandruff, first try regular cleansing with a gentle shampoo to reduce oil and skin cell buildup. If that doesn't help, try a medicated dandruff shampoo. Some people can tolerate using a medicated shampoo two to three times a week, with regular shampooing on other days if needed.
Dandruff isn't curable. Most people will have to manage symptoms over the long term. Usually, the flakes will come and go. Treating dandruff with a special shampoo can manage the condition and prevent itching and flakiness.
It can be due to a dirty scalp, dandruff, infections like fungal infection of the scalp, e.t.c. It can be due to chemicals like hydrogen peroxide present in hair colors, which have a bleaching effect. Deficiency of nutrients like vitamin B. complex, copper, iron and iodine is known to cause premature graying.
Dandruff is a common condition that affects the scalp. It causes the skin of the scalp to become itchy followed by flakes of dead skin. It typically starts around puberty and starts to subside around the age of 50, according to the Journal of Clinical and Investigative Dermatology.
Normal, everyday scratching is not going to lead to hair loss. You do not scratch hard enough to pull your hair out or damage the hair follicles. Most of the time, individuals who experience hair loss from an itchy scalp have an underlying medical condition that is causing excessive irritation.
When a person scratches an itchy scalp repeatedly or aggressively, they can damage their skin and hair follicles. This damage can result in temporary hair loss, bleeding, and scabbing from the scratching. Once the scratching stops, the hair will usually grow back.
When we scratch, Mudgil says we send low-level pain signals to the brain. These pain signals temporarily distract the brain from itch. These pain signals also release serotonin in the brain, which he says feels really, really good.
It's best to leave hair down while sleeping if possible because this reduces the number of tangles that occur during rest time. If you want to wear your hair down while you sleep, avoid rubbing it against the pillow while you're asleep.
How often you need to wash your bras isn't an exact science. But dermatologist Alok Vij, MD, says that as a general rule, you should wash them after every two to three wears.