What causes pets to shed hair?

Pet hair loss is a common problem that troubles many pet owners, but it is not an unprovoked "trouble". Understanding the underlying reasons can help us respond more scientifically and identify potential health signals.

1. "Natural physiological phenomena"

Metabolism: Just as humans lose their hair every day, pets' hair also has its growth cycle (anagen, catagen, and telogen). When hair enters the resting phase, it will eventually fall out naturally to make room for new hair growth. This is a continuous process that ensures the renewal and health of hair. This daily small amount of hair loss is completely normal and inevitable.

Seasonal shedding: This is the most common cause of a sharp increase in hair loss, especially in spring and autumn. Spring molting: As the weather gets warmer, pets need to shed their thick winter fur and replace it with looser summer fur that helps dissipate heat. During this period, the amount of hair loss is very large and usually lasts for several weeks. Autumn molting: As the weather gets cooler, pets need to shed their summer fur and grow thicker and warmer winter fur, which can also lead to a lot of shedding. This kind of shedding is an instinctive adaptation of the pet's body to changes in the temperature of the natural environment. The indoor constant-temperature environment may partially disrupt this seasonal pattern, resulting in a certain degree of hair loss throughout the year, but the peaks in spring and autumn usually still exist.

2. "Environmental and Care Factors"

Indoor constant-temperature environment: Modern families commonly use air conditioners and heaters to keep the indoor temperature relatively constant. This will make the pet's body's perception of seasonal changes blurred, which may cause their molting cycle to become less distinct, and even lead to a state of "molting in small amounts throughout the year", making the shedding seem more persistent.

Insufficient grooming: Regular grooming is an important means to remove dead hair, stimulate blood circulation in the skin, and promote the growth of new hair. If not combed for a long time, a large amount of dead hair will accumulate among the hair and eventually fall out in a concentrated manner (for example, a large bunch will fall out when combed), and it is also easy to form hair knots, which will affect skin health.

3. "Health Issues"

Insufficient grooming: Regular grooming is an important means to remove dead hair, stimulate blood circulation in the skin, and promote the growth of new hair. If not combed for a long time, a large amount of dead hair will accumulate among the hair and eventually fall out in a concentrated manner (for example, a large bunch will fall out when combed), and it is also easy to form hair knots, which will affect skin health.

Skin diseases: Parasitic infections: Bites and parasitism by fleas, ticks, and mites (such as scabies mites and Demodex mites) can cause severe itching and skin inflammation, leading pets to frequently scratch and bite, resulting in local or extensive hair loss and hair breakage.

Fungal infections: Such as ringworm in cats and dogs caused by Microsporum Canis, can result in circular depilation spots, accompanied by scales and crusts.

Bacterial infections: Bacterial infections such as pyoderma can also cause skin redness, swelling and hair loss.

Allergies: Food allergies, environmental allergies or contact allergies can cause skin itching, redness, swelling and inflammation, followed by hair loss due to scratching.

Skin inflammation: Non-infectious inflammations such as seborrheic dermatitis can also affect the health of hair follicles.

In summary, the vast majority of pet hair loss is a manifestation of natural physiological processes (metabolism, seasonal molting), which is their "migration of down". By understanding the underlying patterns and possible risk factors, and through scientific daily care and meticulous health observation, we can better coexist harmoniously with these "walking dandelions", feeling the pulse of life among the flying down. When shedding is abnormal, it is often an important signal of a pet's health and deserves our special attention.

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