Shetland Sheepdog Age Calculator
Calculate your Shetland Sheepdog’s age in human years and get personalised health, nutrition, and life stage information.
Shetland Sheepdog Health Conditions#
Collie Eye Anomaly (CEA)
moderateCommonInherited eye defect.
Prevention: DNA test. CAER exam.
Symptoms: usually mild; can cause blindness
MDR1 Gene Mutation
life_threateningModerateDrug sensitivity mutation in ~15% of breed.
Prevention: DNA test ESSENTIAL before any medication.
Symptoms: severe drug reactions, neurological signs
Dermatomyositis
moderateModerateAutoimmune skin/muscle disease in Shelties/Collies.
Prevention: Not preventable. Managed with immunosuppressives.
Symptoms: facial skin lesions, muscle wasting
Hip Dysplasia
seriousCommon~8% affected per OFA.
Prevention: OFA screening. Maintain healthy weight.
Symptoms: difficulty rising, hind limb lameness, bunny-hopping
Hypothyroidism
moderateCommonUnderactive thyroid.
Prevention: Managed with daily medication.
Symptoms: weight gain, lethargy, hair loss
Shetland Sheepdog Growth Chart#
| Age | Weight Range | Notes |
|---|---|---|
| 2 months | 3–6 lbs | Early growth phase |
| 4 months | 7–13.5 lbs | About 40% of adult weight |
| 6 months | 11–19.5 lbs | About 60% of adult weight |
| 9 months | 15–24.6 lbs | Nearing adult height |
| 1 year | 17–27.6 lbs | Near adult size |
| 1.5 years | 19–29.4 lbs | Approaching maturity |
| 2 years | 20–30 lbs | Full adult weight |
Healthy adult males 20-30 lbs. Maintain lean body condition.
Shetland Sheepdog Life Stages#
puppy
0mo – 6moActive Shetland Sheepdog puppies. Critical development and socialization phase.
adolescent
6mo – 1yrShetland Sheepdog adolescents testing independence. Consistent training important.
young adult
1yr – 2.5yrShetland Sheepdog reaches physical maturity. Energy remains high but focus improves.
adult
2.5yr – 6yrPrime adult years for Shetland Sheepdog. Maintain health and activity level.
mature adult
6yr – 8yrBeginning to slow. May show graying.
senior
8yr – 11yrSenior Shetland Sheepdog may show age-related changes. Monitor breed-specific health concerns.
geriatric
11yr – end of lifeFocus on comfort and quality of life.
Dental Milestones#
Shelties have slightly elevated dental disease risk for their size. Their narrow muzzle can lead to mild crowding. Regular brushing and professional cleanings prevent periodontal disease. Start dental hygiene early as they can be mouth-sensitive.