Pili torti, also known as twisted hair syndrome, is a rare hair shaft abnormality characterized by the twisting of hair shafts at different angles along their length, causing the hair to appear kinked or bent. The condition can affect individuals of all ages and both sexes, although it is more common in women.
Pili torti is a rare hair shaft disorder in which the hair shafts are brittle and have a twisted flattened appearance. It is a result of a genetic defect in the formation of the hair shafts and can lead to hair breakage, hair loss, and other cosmetic concerns.
The hair shaft is composed of three layers: the cuticle, the cortex, and the medulla. In pili torti, the cortex is distorted, causing the hair shaft to twist at irregular intervals along its length. The cause of pili torti is unknown, but it is believed to be due to a genetic defect in the formation of the hair shaft. The condition may also be associated with certain medical conditions, such as eczema, dermatitis, or autoimmune diseases.
Causes
There are several causes of pili torti, which can be classified into two main categories: congenital and acquired.
Congenital causes of pili torti:
- Inherited disorders: Pili torti can be a symptom of inherited disorders such as Menkes disease, trichothiodystrophy and Woolly hair nevus. Menkes disease is a rare genetic disorder that affects copper metabolism and results in brittle, kinky hair, as well as neurological and developmental problems. Trichothiodystrophy is a genetic condition that affects the structure of the hair shaft, causing it to become brittle, fragile and easily broken. Woolly hair nevus is a genetic disorder that causes hair to grow in circular patches and have a woolly appearance.
- Chromosomal abnormalities: Certain chromosomal abnormalities, such as Down syndrome and Turner syndrome, can also cause pili torti. In these conditions, the hair shafts are often thin and brittle and may break easily.
Acquired causes of pili torti:
- Traction alopecia: Traction alopecia is a type of hair loss caused by repeated pulling or tension on the hair shafts. This can occur due to tight braiding, ponytails, or other hairstyles that put stress on the hair. Over time, this can result in hair that is easily broken and has a twisted appearance.
- Chemical damage: Exposure to harsh chemicals, such as bleach, relaxers, and hair dyes, can damage the hair shaft and cause pili torti. The chemicals can weaken the hair, making it more susceptible to bending and breaking.
- Physical damage: Physical damage to the hair can also cause pili torti. This can occur due to excessive heat from hair styling tools, such as flat irons and curling irons, or from brushing and combing the hair too harshly.
- Nutritional deficiencies: Nutritional deficiencies, such as a lack of biotin, iron, and zinc, can affect the health of the hair and lead to pili torti. When the body is lacking these important nutrients, the hair may become brittle, fragile, and easily broken.
- Medical conditions: Certain medical conditions, such as hypothyroidism and alopecia areata, can cause pili torti. Hypothyroidism is a condition in which the thyroid gland does not produce enough hormones, resulting in hair that is dry, brittle, and easily broken. Alopecia areata is an autoimmune disorder that causes hair loss and can result in twisted or kinky hair.
- Medications: Certain medications, such as chemotherapy drugs, can cause hair to become brittle and easily broken, leading to pili torti.
In some cases, the cause of pili torti may not be clear, and multiple factors may be contributing to the condition. For example, a person with a genetic predisposition to pili torti may develop the condition due to chemical damage from hair products or physical damage from excessive heat styling.
Symptoms
The main symptoms of pili torti include:
- Brittle hair: Hair with pili torti is often brittle and prone to breaking easily, especially near the scalp.
- Twisted hair shafts: The hair shafts themselves may be twisted or kinked, causing the hair to appear wavy or curly.
- Patchy hair loss: Some people with pili torti may experience patchy hair loss, with hair falling out in clumps or thinning over time.
- Frizziness: The hair may also become frizzy, making it difficult to manage and style.
- Dull hair: Hair with pili torti may lack luster and appear dull.
- Split ends: Split ends are common in hair with pili torti, as the hair is more prone to breaking.
- Difficulty combing: People with pili torti may find it difficult to comb or brush their hair without causing breakage.
- Scalp irritation: The scalp may become irritated and inflamed, especially in areas where the hair is breaking or falling out.
- Nail abnormalities: In some cases, people with pili torti may also experience nail abnormalities, such as spoon-shaped nails or ridges on the nails.
Pili torti can be a congenital condition, meaning that it is present from birth, or it can develop later in life as a result of certain medical conditions, such as iron-deficiency anemia, thyroid disease, or autoimmune disorders. It can also be caused by exposure to certain chemicals, such as hair dyes or relaxers, or by physical trauma to the hair, such as excessive heat styling or tight braiding.
Diagnosis
The diagnosis and tests for Pili Torti can help to determine the underlying cause of the condition and guide appropriate treatment.
Diagnosis of Pili Torti:
- Clinical Examination: The first step in diagnosing Pili Torti is a thorough clinical examination by a dermatologist. The doctor will examine the hair for any signs of breakage, twisting, or flattening. They will also check for any associated symptoms such as itching, scaling, or redness of the scalp.
- Trichoscopy: Trichoscopy is a non-invasive diagnostic tool that uses a dermatoscope to examine the hair and scalp. It provides a magnified view of the hair and helps to identify the specific pattern of Pili Torti.
- Light Microscopy: Light microscopy is a laboratory test that involves examining a hair sample under a microscope. This test can help to identify the structural abnormality of the hair shaft, such as twisting or flattening, and can also detect any signs of damage or disease.
- Biopsy: In some cases, a biopsy of the scalp may be necessary to confirm the diagnosis of Pili Torti. A small sample of the scalp is taken and examined under a microscope to identify any underlying medical conditions that may be causing the hair shaft abnormality.
Tests for Pili Torti:
- Blood Tests: Blood tests can help to identify any underlying medical conditions that may be causing Pili Torti. This may include tests for iron deficiency anemia, autoimmune disorders, and hormonal imbalances.
- Genetic Testing: In some cases, Pili Torti may be caused by a genetic mutation. Genetic testing can help to identify any inherited predisposition to the condition.
- Allergy Testing: Allergy testing may be necessary if the dermatologist suspects that an allergic reaction is causing Pili Torti. The test involves exposing the skin to various allergens and observing any reactions.
- Patch Testing: Patch testing is a type of allergy test that involves placing small patches of suspected allergens on the skin and observing any reactions. This test can help to identify any specific allergens that may be causing Pili Torti.
Treatment
There is no cure for pili torti, but there are several treatments that can help to manage the symptoms and improve the appearance of the hair. The most common treatment options for pili torti include:
- Hair care: Maintaining good hair care is the first step in managing pili torti. This includes using a gentle shampoo and conditioner, avoiding harsh chemicals and heat styling, and using a wide-tooth comb to detangle the hair.
- Topical treatments: Topical treatments such as coconut oil, olive oil, and castor oil can help to moisturize the hair and prevent breakage. These oils can be massaged into the scalp and left on for several hours before washing out.
- Medications: In some cases, medications such as biotin and minoxidil may be prescribed to improve the health of the hair and promote growth. Biotin is a B-vitamin that is essential for hair health, while minoxidil is a vasodilator that can improve blood flow to the scalp and promote hair growth.
- Hair styling: Gentle hair styling techniques, such as braiding or twisting, can help to reduce hair breakage and improve the appearance of the hair. It is important to avoid using tight hairstyles that can put excessive tension on the hair and cause breakage.
- Hair transplantation: In severe cases of pili torti, a hair transplantation procedure may be necessary to restore hair growth. During this procedure, hair follicles are taken from a donor area and transplanted to the affected area.
- Wigs and hairpieces: Wigs and hairpieces can be used to provide temporary coverage for hair loss and improve the appearance of the hair. There are a variety of wig and hairpiece options available, including synthetic wigs, human hair wigs, and hair extensions.
- Support groups: Joining a support group can provide individuals with pili torti with the emotional support they need to manage the condition. Support groups can also provide individuals with information and resources on the latest treatments and research in the field.
It is important to keep in mind that the best treatment plan for pili torti will vary depending on the individual and the severity of their condition. A healthcare provider or dermatologist can help to determine the best course of treatment for each individual.