Senior Cat2026-03-10Carelogy編集部
Early Cancer Detection in Cats: Subtle Signs & the Role of Regular Checkups
How to catch cancer early in cats: subtle warning signs, the importance of routine screenings, and what to expect from diagnostic tests.
Cancer in Cats: Prevalence & Why Early Detection Matters
Cancer (malignant neoplasia) is one of the leading causes of death in older cats. Approximately one-third of cats over age 10 will develop some form of tumor.
Common Cancer Types in Cats
- Lymphoma: The most common feline cancer; gastrointestinal lymphoma is the most frequent subtype
- Mammary tumors: Most prevalent in unspayed females; about 85-90% of feline mammary tumors are malignant
- Squamous cell carcinoma (SCC): Develops in the mouth, ears, and nose
- Mast cell tumor: Occurs in the skin or internal organs
Cancer warning signs in cats are extremely subtle in the early stages, often presenting as barely noticeable changes from normal behavior.
Early detection opens up more treatment options and dramatically improves prognosis. Lymphoma in particular may achieve remission with early chemotherapy.
Subtle Early Signs of Cancer You May Miss
以下の症状はがんの初期症状である可能性があるため、見逃さないようにしましょう。
1. 原因不明の[体重減少](/ja/columns/cat-weight-loss)
ダイエットをしていないのに体重が減る場合は要注意。
2. [食欲の変化](/ja/columns/cat-loss-of-appetite)
食欲不振が続く場合、消化管のリンパ腫や口腔内の腫瘍の可能性。
3. [しこり・腫れ](/ja/columns/cat-lump-bump)
体の表面に新たなしこりが見つかった場合は、必ず獣医師に診てもらいましょう。
4. 治らない傷・ただれ
数週間経っても治らない皮膚の潰瘍は扁平上皮癌の可能性。
5. [口臭の悪化](/ja/columns/cat-bad-breath)・口からの出血
口腔内の腫瘍のサイン。
6. 慢性的な[嘔吐](/ja/columns/cat-vomiting)・[下痢](/ja/columns/cat-diarrhea)
消化管リンパ腫の初期症状として現れることがある。
7. [呼吸困難](/ja/columns/cat-breathing-fast)・[咳](/ja/columns/cat-coughing)
肺の腫瘍や胸水貯留。
8. [元気消失](/ja/columns/cat-lethargy)・活動量の低下
全般的な体調悪化のサイン。
何か異常を見つけたら「しばらく様子を見よう」と待たず、2週間以内に動物病院を受診してください。
For senior cats, every day matters
Subtle changes can signal serious issues in older cats. CatsMe tracks behavior, appetite, and health scores so you can act fast.
Dipercayai oleh lebih 230,000 pemilik kucing di 50 negara
Routine Screenings & At-Home Self-Checks
Recommended Screening Frequency by Age
- Under 7 years: Annual wellness exam
- 7-10 years: Wellness exam once or twice a year plus blood work
- Over 10 years: Biannual wellness exams with comprehensive blood panels and urinalysis
Useful Screening Tests for Cancer
- Blood work: Detects anemia, white blood cell abnormalities, and organ function changes
- Chest and abdominal X-rays: Identifies lung masses and intra-abdominal tumors
- Abdominal ultrasound: Excellent for detecting masses in the GI tract, liver, spleen, and kidneys
- Fine-needle aspirate (FNA): A needle is inserted into a lump to collect cells for microscopic evaluation
At-Home Self-Checks
Once a month, gently run your hands over your cat's entire body to feel for lumps or swelling.
- Mammary glands (along both sides of the belly)
- Lymph nodes (under the jaw, armpits, behind the knees)
- Inside the mouth (gum color and swelling)
- Abdomen (distension or firm masses)
Preventing Mammary Tumors
Early spaying dramatically lowers the risk of mammary tumors. Spaying before six months of age reduces the risk by approximately 91%.
Bolehkah anda menjawab "bila ini bermula?"
Jangan tergagap bila doktor haiwan bertanya. CatsMe merekod skor kesihatan harian secara automatik yang boleh dikongsi dengan satu sentuhan.
がん腫瘍早期発見リンパ腫定期検査
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