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Dog Mast Cell Tumor Symptom Monitor
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Free, offline, no account · Updated July 2026

Dog Mast Cell Tumor Symptom Monitor

Mast cell tumors can change in size and behavior, so tracking matters. Log each lump's location, size, and appearance over time to give your vet a clear, dated record.

Start tracking - it's free
100% FreeWorks OfflineNo Account NeededPrivate on Your Device

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Why a lump log helps

Mast cell tumors can fluctuate in size, which makes it hard to tell from memory whether a lump is really changing.

Dogs often have more than one lump, and keeping track of each location and measurement is difficult without a record.

Your vet benefits from dated measurements and notes to monitor each mass and decide on next steps.

What the tracker actually does

Helpful supplies for monitoring & comfort (#ad)

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Get started in under a minute

  1. Open the free app and add your dog's profile - no sign-up or internet connection required.
  2. Log each lump's location, size, and appearance, and attach a dated photo to track changes.
  3. Export your monitoring history so your veterinarian can review each mass over time.
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Frequently asked questions

Is this mast cell tumor monitor really free?
Yes. The app is completely free, works offline, and does not require an account.
What can I track for mast cell tumors?
You can log each lump's location, size, appearance, and dated photos so you have a clear record of any changes over time.
Can I track more than one lump?
Yes. You can record multiple lumps separately by location so each one can be monitored on its own.
Does my data stay private?
Your records and photos are stored on your own device. Nothing is shared unless you choose to export and send it yourself.
Can this app diagnose or treat my dog?
No. This app is only a record-keeping tool and is not a substitute for professional care. Any new or changing lump should be evaluated by a licensed veterinarian.

Start monitoring your dog's lumps today

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Informational only - not veterinary advice. PetHealthLog helps you keep records and stay organised, but it does not diagnose, prescribe, or decide your pet's treatment. Diagnosis and any plan should be decided with a licensed veterinarian.

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Looking for product picks? Browse all PetHealthLog buyer guides → — vet-informed picks with #ad affiliate links. Always confirm the right product with your own vet.

When to contact a vet immediately

A tracker is for patterns over time — it is not for emergencies. Contact a veterinarian or an emergency clinic right away if your pet has difficulty breathing, collapses or cannot stand, has a seizure that does not stop or seizures that repeat, is straining to urinate without producing urine, has severe bleeding, or may have swallowed something toxic (see ASPCA Animal Poison Control).

Sources & further reading

PetHealthLog is a record-keeping tool, not veterinary advice. Nothing on this page diagnoses or treats any condition — always follow your own veterinarian's guidance.