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.
Sebum buildup appears as white or yellowish oily residue on the scalp. It sometimes produces flakes on the scalp and may be mistaken for dandruff, scalp eczema, or psoriasis.
Seborrheic dermatitis is a common, noncontagious, easy-to-manage skin condition. This type of dermatitis causes itchy red patches and greasy scales on your skin along with white or yellow crusty or powdery flakes on your scalp. “Seborrheic” refers to the “sebaceous” glands while “derm” means “skin.”
Have you ever scratched your scalp and noticed white, waxy buildup under your nails? That's sebum mixed with dead skin cells. It's hard for shampoo alone to wash away your oily scalp issues. And issues like stress and weather can increase the scalp's sebum production, making you even oilier.
White Flakes Pose No Health Risk
Doctors aren't sure, but one theory is that it may be due to an overgrowth of a fungus. Other possible risk factors include oily skin, stress, obesity, cold, dry weather, and having eczema or psoriasis.
Hair casts or pseudonits are 2-7 mm long, discrete, firm, shiny, white, freely movable tubular accretions that encircle the hair shafts of the scalp. [1] Even though they are not unusual, there is scarce literature on them and underdiagnosis is common.
An unhealthy scalp can show up as skin concerns on the scalp or issues with your hair. "An unhealthy scalp shows hair loss, hair breakage, dandruff, redness, pain, acne, cysts, and itching," says Ayesh.
A healthy scalp should not have any redness or dryness and should be free of flakes or any signs of infection. Your scalp should look clean, smooth, and moisturized with no dryness on the surface. If you are experiencing any itchiness, irritation, or burning, this can indicate that your scalp is unhealthy.
Scratching your scalp with your nails can cause even MORE flaking and inflammation, and may result in small tears and scabs. Your scalp skin actually has more hair follicles and oil glands than any other part of your body, making it a lot more sensitive and susceptible to skin issues.
Scratching your scalp for long periods of time can damage your hair strands. The outside of each hair strand is covered in cuticlescales, somewhat like scales on a fish. The back-and-forth scratching action chips away at the protective cuticle, weakening the hair and making it more likely to break.
When to wash. Rossi generally tells his patients they should wash their hair once or twice per week. But if you've had chemical treatments that can make your hair drier — such as bleach, perms or relaxers — you might want to wash it less than once weekly to avoid breaking or brittle hair or split ends, he said.
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.
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.
The skin on your scalp and your hair is delicate and easily damaged, so constant grating with your fingernails or a harsh comb can really make a mess of the situation. Scratching too often will usually cause flaking, where dead skin cells will fall off your scalp and get into your hair and clothes.
When we scratch our heads, blood flows to our scalp, causing warmth and even a tingly sensation. Mix that with serotonin from the itch, and you have an amazing feeling of satisfaction and happiness from a head scratch. It's not bad to itch your scalp every once in a while.
As of yet, there is no research into why anxiety causes itchy scalp. Most studies seem to indicate that anxiety and stress don't cause itchy scalp directly. Rather, the person is more likely to have dandruff or a natural and otherwise harmless scalp condition, and their scalp condition is made worse by stress.
You might clear out some of the flakes which are on top and displace some of the dead skin cells. But unless you attack the underlying cause of dandruff, your body will just keep creating more flakes. So you're going to keep using a dandruff removal comb, and never actually remove dandruff from your life.
Whilst we recommend exfoliating your scalp in the shower, so all those dead skin cells and product wash away, a scalp massage can be enjoyed on wet or dry hair.
WHITE: This is the ideal colour. If it's translucent with no flakes, not oily or dry and slightly soft to the touch, it's perfectly healthy!. But this may change with age and changes in diet and lifestyle, so always be mindful. YELLOW: You may have overactive sebum secretion clogging your follicles.
What are the signs of healthy hair? Healthy hair strands have a sheen and a luster, little breakage, minimal shedding, are moisture rich (so not dry), reflect light, do not break when brushed, and do not contain dandruff.