What should I do about Butterfly Dog hair loss? I believe that many pet friends feel that the problem of dog hair loss is normal, but in many cases the degree of dog hair loss also shows that the dog Dog health problems. If there is a serious problem with butterfly dog hair loss, the following article may help you!

(1) Etiology and clinical symptoms of endocrine disorder hair loss

This kind of butterfly dog alopecia can occur in various dogs, and its early changes are pigmentation, dandruff, and coat Sparse, etc., followed by alopecia, symmetrically distributed in the abdominal ribs, chest and thigh of the dog. The most common ones are thyroxine, epinephrine and gonadal disorders.

1. Hair loss due to hypothyroidism. Clinically, dogs often show lethargy, fatigue, obesity, infertility, and cold tolerance; dry and rough skin, sparse coat and hyperkeratosis Wait.

2. Long-term use of corticosteroids due to excessive secretion of adrenocortical tumors and pituitary adrenocorticotropic hormone. Dogs with alopecia are often manifested as frequent urination, urine specific gravity below 1.020 (normal value is 1.015 to 1.050); muscle atrophy, easy fatigue, fat tubular distribution, and increased abdominal circumference; skin thinning, and epidermal blood vessels and Belly skin folds. Calcium and pigment are unevenly deposited on the diseased skin. Overeating.

3. Gonadal disorders can be seen in testicular podocytes in male dogs. Alopecia in female dogs is usually associated with ovarian cysts, and repeated cycles of hair loss and recovery are seen in dogs, accompanied by enlarged breasts and vulva.

Diagnosis:

Mainly based on clinical and hormone content determination, but the latter is more difficult.

Treatment:

Male dogs with testicular podcytoma require removal of the testicles and oral or injection of testosterone. Female dogs with ovarian dysfunction should have both ovaries or uterus removed. Trial thyroxine, taking 0.4-0.8mg/Kg body weight per day for 4-8 weeks as a course of treatment. The dosage is increased in the first 2 weeks, and then decreased, and a better effect can be received.

(II) Pathogens and clinical symptoms of ringworm

Ringworm is caused by skin opportunistic fungi (also known as dermatophytes) , can cause damage to the epidermis, hair and claws. There are three main types of pathogenic dermatophytes in dogs.

1. Microsporum canis exists in dogs for a long time and produces only mild inflammation. About 50% of ringworm in dogs is caused by this bacteria.

2. Microsporum gypsum is a soil-loving fungus that occasionally causes ringworm in dogs in warm climates, but the inflammatory response and infection are self-limited.

3. Microsporum spp. mainly causes secondary ringworm in dogs, and mice are the main carriers. The pathogenicity of dermatophytes is mainly caused by hyphae invading the hair column, hair follicle and cuticle, causing hair loss and production of dander, which mostly occurs on the head, feet and legs.

Diagnosis:

1. Take the coat or skin scraping, observe under Wood's lamp, the dog hair infected with Microsporum canis is green Fluorescence.

2. Digest the scraped material with a hot solution of potassium cyanide oxide, and observe whether there are fungi seeds under a microscope.

3. The diseased material was inoculated in Sabouraud's medium and cultured at room temperature for 1.2 weeks. The colony of Microsporum canis was yellow basal surface with fine curly hair; Colonies full of fine particles; gypsum-like microspore colonies are yellow leathery; black or blue colonies are contaminated fungi. Adding phenol red to Sandburg's medium can make the medium turn red, which can be initially diagnosed as dermatophytes . Treatment method:

The drug of choice is griseofulvin, the daily dose is 15mg/kg, high-fat food is fed to promote intestinal absorption, and antibacterial preparations such as clotrimazole can be applied locally.