Hair follicles are part of your skin that are responsible for growing your hair. If you accidentally pull out a strand of your hair and it has a ball (bulb) on the end of it, you didn't pull out the follicle, and instead, you removed your hair root. That root grows back and your hair will grow back, too.
Black bulbs mean the hair was in Anagen phase when it fell out, rather than telogen phase. That means the black bulbs are hairs that were still growing, which you shouldn't be losing. Stress would cause Anagen phase hair loss, and so would DHT (which would be male pattern baldness AKA androgenic alopecia).
As long as it is not happening excessively or you are not noticing it on every hair strand that falls out, losing hair with a bulb at the end of it is perfectly normal. It just means that you lost the hair in the third phase of the hair growth cycle rather than during the fourth phase.
"The white bulb at the end of the hair is keratin (or protein) and is the same keratin that makes up your skin and nails. A white bulb is not indicative of hair loss," said stylist Carrie Capalbo of Salon YOSHIKO. "It's part of the lining of the hair follicles.
At the base of the hair, the hair root widens to a round hair bulb. The hair papilla, which supplies the hair root with blood, is found inside the bottom of the hair bulb. New hair cells are constantly being made in the hair bulb, close to the papilla.
When your hair follicles have died or become inactive the skin on the scalp takes on a smooth, shiny appearance. This indicates that hair loss has progressed to the stage of true baldness.
“A black dot is defined as a hair in which the upper part of the hair root remains adherent to the hair-follicle ostium, giving the macroscopic appearance of a macrocomedo.
The hair follicle is the point from which the hair grows. The terminal part of the hair follicle within the skin is called a hair bulb. The hair bulb is the structure formed by actively growing cells. These cells produce the long, fine and cylindrically-shaped hair fibres.
Piedra is a superficial fungal infection of hair shafts, which presents with small nodules stuck-on to the shaft. Black piedra, caused by Piedraia hortae, is characterized by black-colored nodules and is common in the tropics, especially in individuals with long hair and poor scalp hygiene.
Black hair follicular dysplasia is a rare inherited skin abnormality in dogs that is characterized by hair loss in black colored areas of a dog's coat. It is believed to be a genetic disorder, and is seen in both purebred and mixed dogs with bicolor or tricolor coats.
Early on, any of the new hair growth you experience may just look like dark spots on your scalp, which can form as the new hair root grows from the follicle. These new hairs might be easier to see if you have dark hair and a light skin tone.
Myth: A hair falling out with a white bulb attached means it won't grow back. False! If you notice that some of your fallen hairs have a small white lump or bulb at the root, you shouldn't worry. This does not mean that the root of your hair has been removed, or that the follicle is dead.
If the doctor gently tugs on some hairs on your scalp and four or more hairs come out, you probably have telogen effluvium. Also, the hairs will look like hairs in the telogen phase — they will have a white bulb at the end that was in the scalp, and will not have a gel-like covering around that end of the hair.
The hair bulb comprises the expanded portion of the inferior hair follicle and contains the dermal papilla and hair matrix. The dermal papilla consists of mesenchymal cells which function in the regulation of hair growth.
Dark spots
It's time to be overjoyed! These dark spots indicate that your hair follicles are in the active phase of hair regrowth.
Ingrown hairs are often accompanied by bacteria and inflammation in the follicle, which causes the skin to mobilize a protective response in the form of increased melanin. The dark spots that appear are known as post-inflammatory hyperpigmentation.
You may also see small black dots if the hair has broken off right at the scalp. Ringworm of the scalp (tinea capitis) is a rash caused by a fungal infection. It usually causes itchy, scaly, bald patches on the head. Ringworm gets its name because of its circular appearance.
Telogen (shedding): This is the resting stage of your hair growth cycle. The hair follicle is inactive, and there's a white bulb of keratin at the root (club hair). The bulb of keratin keeps the hair in the follicle until it sheds, which then starts the hair growth cycle over again.
When you pull out your hair "by the root," you may observe a transparent swelling called the "bulb." The area above the bulb usually seen on a plucked hair is the root sheath, the growing area of a hair.
Only riboflavin, biotin, folate, and vitamin B12 deficiencies have been associated with hair loss.
Blocked hair follicles start out like pimples. If they get worse, they can grow deep into the skin and look more like cysts or boils. They may also burst and leak pus or blood. They can make tunnels under your skin.
Laser hair removal
The laser emits a beam of light, which the pigment (color) in your hair absorbs. Over time, this can destroy the hair follicle, so the hair cannot grow back. While it takes about 6 treatments from a dermatologist to destroy a follicle, the hair will grow back thinner and finer after each treatment.