The most common hair disorder is androgenic alopecia, which is also known as male or female pattern baldness. This condition is characterized by a gradual thinning of the hair on the scalp. It usually begins with a receding hairline in men and thinning at the crown in women.
The cause of androgenic alopecia is unknown, but it is thought to be related to hormones called androgens.
There are many different types of hair disorders, but the most common one is alopecia. Alopecia is a condition that causes hair loss, and it can affect both men and women. There are several different types of alopecia, but the most common form is called androgenetic alopecia.
This type of alopecia is caused by a combination of hormones and genetics, and it typically results in a gradual thinning of the hair on the scalp. Androgenetic alopecia is the most common type of hair loss in men, and it affects about two-thirds of all men by the time they reach the age of 60. If you’re concerned about losing your hair, talk to your doctor about treatment options.
Table of Contents
Hair Disorders || Alopecia || Dermatology Lecture -5 || Link for Handwritten Notes is in Description
What is a Common Hair Disorder?
A common hair disorder is a condition that affects the growth, texture, or color of your hair. It can be caused by genetics, hormones, medical conditions, medications, or environmental factors. Common hair disorders include alopecia (hair loss), hirsutism (excessive hair growth), and scalp infections.
What are 2 Common Problems With Hair?
There are a number of common problems that can affect the hair, ranging from minor issues like dandruff to more serious conditions like alopecia. Here are two of the most common problems:
Dandruff: Dandruff is a very common scalp condition that causes flakes of skin to fall from the head.
It can be caused by a number of things, including dry skin, oily skin, fungal infections, or certain medical conditions. While dandruff is not harmful, it can be embarrassing and difficult to get rid of. There are a number of over-the-counter treatments available, as well as home remedies like apple cider vinegar or baking soda.
Alopecia: Alopecia is a condition that causes hair loss. It can be caused by genetic factors, certain medical conditions (e.g., thyroid disorders), or even stress. While there is no cure for alopecia, there are treatments available that can help slow down or stop the hair loss.
These include medication (e.g., minoxidil), injections (e.g., corticosteroids), and surgery (e.g., hair transplants).
What are the Three Types of Hair Disorders?
There are actually many different types of hair disorders, but we will focus on three of the most common ones.
The first type of hair disorder is called alopecia. This is when someone experiences hair loss, which can be partial or complete.
There are several different forms of alopecia, but the most common one is androgenetic alopecia, which affects both men and women. Other forms include alopecia areata (patchy hair loss), telogen effluvium (temporary shedding), and traction alopecia (caused by tight hairstyles).
The second type of hair disorder is called trichotillomania.
This is when someone has an irresistible urge to pull out their own hair. It can affect any part of the body where hair grows, but the most common areas are the scalp, eyebrows, and eyelashes. People with this disorder often go through periods where they pull out more hairs than usual, followed by periods where they don’t pull any out at all.
It can be a very difficult disorder to overcome without professional help.
The third type of hair disorder is called scalp psoriasis. This is a condition that causes raised, scaly patches on the skin – including the scalp.
It can be a very itchy and uncomfortable condition, and it can also lead to temporary hair loss in some cases.
What are the Types of Hair Disorder?
Hair disorders can be classified into three main types: medical, genetic, and cosmetic.
Medical hair disorders are caused by underlying health conditions, such as alopecia areata (an autoimmune disease that causes patchy hair loss), trichotillomania (a compulsive disorder that leads to hair pulling), and telogen effluvium (a condition that disrupts the hair growth cycle).
Genetic hair disorders are usually passed down from one or both parents and include conditions like male-pattern baldness and female-pattern baldness.
Cosmetic hair disorders are caused by external factors, such as over-styling, excessive use of heat styling tools, certain hairstyles (e.g., tight ponytails), and chemical treatments (e.g., bleaching, perming).
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Hair Diseases List
There are many different types of hair diseases, and each one can cause different symptoms. Here is a list of some of the most common hair diseases:
Alopecia: Alopecia is a condition that causes hair loss.
It can be caused by a variety of factors, including genetics, autoimmune disease, stress, and certain medications. There are several types of alopecia, but the most common form is called androgenetic alopecia or male pattern baldness. This type of alopecia usually begins in adulthood and progresses slowly over time.
Alopecia Areata: Alopecia areata is another form of alopecia that causes patchy hair loss on the scalp or other areas of the body. It is thought to be an autoimmune disorder, where the body’s immune system attacks the hair follicles. Although it can affect people of any age, it is most common in teenagers and young adults.
Telogen Effluvium: Telogen effluvium is a type of temporary hair loss that occurs when the normal cycle of hair growth is disrupted. It can be caused by stress, certain medications, childbirth, surgery, or sudden weight loss. With telogen effluvium, large numbers of hairs enter the resting phase (telogen) and fall out within weeks or months.
The good news is that this type of hair loss is usually reversible once the underlying cause has been treated.
Anagen Effluvium: Anagen effluvium occurs when something interferes with the normal growth phase (anagen) of the hair follicle resulting in premature shedding of hairs that have not yet reached their full length .It can be caused by chemotherapy treatments for cancer as well as other toxic exposures such as arsenic or lead poisoning .
This typeofhairlossisusuallyreversibleonce exposure tothe causative agent has been stopped .
Traction Alopecia :Tractionalopeicaisahairlossthat results from chronic traction(pulling)on ahairsuchas from tightbraidsor ponytails .Itcan alsobe seenin people whowearheavywigsor have had repeated surgical proceduresinvolvingthescalp .
Tractionalopeica mayresultina permanentloss offollicularunitsifitissustainedfor longperiodsof time
Hair Shaft Disorders
The hair shaft is the part of the hair that you can see. It’s made up of three layers: the cuticle, cortex, and medulla. The cuticle is the outermost layer and it’s made up of overlapping cells that protect the inner layers of the hair shaft.
The cortex is the middle layer and it’s where your hair’s color comes from. The medulla is the innermost layer and it’s made up of spongy cells.
There are several different types of hair shaft disorders, including:
-Hair loss: This can be caused by a variety of factors, including genetics, illness, stress, medications, and certain hairstyles (like tight ponytails). -Brittle hair: This can be caused by damage to the cuticle or cortex, as well as vitamin deficiencies. -Split ends: This happens when the ends of your hair become frayed or damaged.
It can be caused by overuse of heat styling tools, chemical treatments, or harsh brushing. -Dandruff: This is a condition that causes flakes of skin to fall from your scalp. It can be caused by dryness, an overgrowth of yeast on your scalp, or certain medical conditions (like psoriasis).
Rare Hair Disorders
There are a number of different types of hair disorders that are considered to be rare. These disorders can range from conditions that cause the loss of hair, to those that result in the growth of abnormal or excess hair. Here is a closer look at some of the most interesting and rarest hair disorders:
Alopecia Areata: Alopecia areata is a condition that causes patchy hair loss on the scalp. It is believed to be caused by an autoimmune reaction, where the body’s immune system attacks the hair follicles. The exact cause is unknown, but it is thought to be linked to stress or other psychological factors.
There is no cure for alopecia areata, but treatments such as topical corticosteroids or immunotherapy can help to improve symptoms.
Trichotillomania: Trichotillomania is a condition characterized by compulsivehair pulling. This can result in thinning eyebrows or bald patches on the scalp.
The exact cause of trichotillomania is unknown, but it is thought to be linked to anxiety or other mental health conditions. Treatment typically involves therapy and medication, which can help reduce symptoms and prevent further hair loss.
Hirsutism: Hirsutism is a condition characterized by excessive facial and body hair growth in women.
It can be caused by hormonal imbalances, certain medications, or polycystic ovary syndrome (PCOS). Treatments for hirsutism vary depending on the underlying cause, but may include oral contraceptives, laser hair removal, or medication to regulate hormones levels.
Hypertrichosis: Hypertrichosis is a condition characterized by abnormal and excessive hair growth over the body.
It can be genetic or acquired through certain medical treatments such as radiation therapy . There is no cure for hypertrichosis , but treatments such as shaving , waxing , bleaching , or laser hair removal can help manage symptoms .
Conclusion
The most common hair disorder is androgenetic alopecia, which is also known as male pattern baldness. This condition affects approximately 50 million men in the United States. Androgenetic alopecia is caused by a combination of genetic and hormonal factors.
The condition is characterized by a progressive thinning of the hair on the scalp. In severe cases, men may experience complete baldness. There are treatments available for androgenetic alopecia, but they are not effective for everyone.