Changes

==Introduction==

==Introduction==

Hair growth follows an intrinsic rhythm and is regulated by multiple growth factors, cytokines and local mediators. It is modified by systemic factors and [[Pineal Gland - Anatomy & Physiology|pineal]], [[Pituitary Gland - Anatomy & Physiology|pituitary]], [[Thyroid Gland - Anatomy & Physiology|thyroidal]], [[Adrenal Glands - Anatomy & Physiology|adrenal]] and [[Reproductive Hormones Overview - Anatomy & Physiology|reproductive hormones]].

Hair growth follows an intrinsic rhythm and is regulated by multiple growth factors, cytokines and local mediators. It is modified by systemic factors and [[Pineal Gland - Anatomy & Physiology|pineal]], [[Pituitary Gland - Anatomy & Physiology|pituitary]], [[Thyroid Gland - Anatomy & Physiology|thyroidal]], [[Adrenal Glands - Anatomy & Physiology|adrenal]] and [[Reproductive Hormones Overview - Anatomy & Physiology|reproductive hormones]].

'''Coat Colour-Linked''':

'''Coat Colour-Linked''':

:Colour-dilution alopecia, black hair dysplasia, follicular lipidosis

:[[Colour Dilution Alopecia|Colour-dilution alopecia]], black hair dysplasia, follicular lipidosis

'''Endocrine-Related Hair Cycle Problems''':

'''Endocrine-Related Hair Cycle Problems''':

In acquired alopecia, the clinical signs are influenced by the cause. The alopecia can be '''localised, multifocal, symmetric or generalised'''.

In acquired alopecia, the clinical signs are influenced by the cause. The alopecia can be '''localised, multifocal, symmetric or generalised'''.

Inflammatory changes such as: '''lichenification, hyperpigmentation, erythema, scaling and pruritus''' are common. Some causes of alopecia predispose animals to developing '''secondary skin diseases''' such as bacterial pyoderma or [[seborrhoea]].

Inflammatory changes such as: '''lichenification, hyperpigmentation, erythema, scaling and pruritus''' are common. Some causes of alopecia predispose animals to developing '''secondary skin diseases''' such as bacterial pyoderma or [[Seborrhea|seborrhoea]].

In '''endocrine disorders''', the pattern of loss is symmetrical, often in wear areas first, and pruritus is not generally present.

In '''endocrine disorders''', the pattern of loss is symmetrical, often in wear areas first, and pruritus is not generally present.

==Treatment==

==Treatment==

This will depend on the underlying cause of the alopecia.

This will depend on the underlying cause of the alopecia.

==References==

==References==

{{review}}

{{review}}

[[Category:Dermatological Diseases - Dog]]

[[Category:Dermatological Diseases - Dog]]

[[Category:Dermatological Diseases - Cat]]

[[Category:Dermatological Diseases - Cat]]