Dog Seasonal Shedding vs Illness: How to Tell
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Normal shedding and worrying hair loss look different up close. Here's how to tell them apart.
Normal seasonal shedding
Most dogs shed year-round and heavier in spring and fall as their coats adjust to the seasons. Normal shedding is even across the body, and the skin underneath looks healthy. The coat stays generally full even as loose hair comes out.
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Signs of abnormal hair loss
Warning signs include bald patches, thinning in specific spots, symmetrical hair loss, or skin that's red, flaky, scabbed, or smelly. Excessive scratching or licking alongside hair loss also points to a problem. If the skin looks unhealthy, it's likely more than shedding.
Common medical causes
Abnormal hair loss can stem from allergies, parasites like fleas or mange, infections, or hormonal conditions such as hypothyroidism. Allergic itch is a frequent driver, and a vet-prescribed medication like [Apoquel Tablets for Dogs](/products/apoquel-tablets-for-dogs) may be part of managing it. Fleas alone can cause significant hair loss from scratching.
Managing normal shedding
For healthy seasonal shedding, regular brushing with a tool like the [FURminator deShedding Tool for Dogs](/products/furminator-deshedding-tool-for-dogs) removes loose undercoat and cuts down on hair around the home. A [Chom Chom Roller Pet Hair Remover](/products/chom-chom-roller-pet-hair-remover) helps with furniture. A balanced diet with omega-3s supports coat health too.
When to see the vet
See your vet if you notice bald spots, unhealthy skin, intense itching, or shedding that seems sudden or severe. These can indicate allergies, parasites, infection, or a hormonal issue that needs treatment. Diagnosing the cause is the key to regrowing the coat.
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Frequently asked
- How do I know if my dog's shedding is normal?
- Normal shedding is even, heavier in spring and fall, and leaves healthy skin underneath. Bald patches, red or flaky skin, or intense itching suggest a medical cause worth a vet visit.
- What causes abnormal hair loss in dogs?
- Allergies, parasites like fleas or mange, skin infections, and hormonal conditions such as hypothyroidism can all cause hair loss. A vet can diagnose the cause and guide treatment.
