{"id":418,"date":"2026-11-04T06:43:15","date_gmt":"2026-11-04T14:43:15","guid":{"rendered":"https:\/\/www.cherrycreekvet.com\/blog\/?p=418"},"modified":"2026-11-04T06:43:16","modified_gmt":"2026-11-04T14:43:16","slug":"why-does-my-pet-have-a-lump-under-the-skin-when-a-mass-needs-testing","status":"publish","type":"post","link":"https:\/\/www.cherrycreekvet.com\/blog\/why-does-my-pet-have-a-lump-under-the-skin-when-a-mass-needs-testing\/","title":{"rendered":"Why Does My Pet Have a Lump Under the Skin? When a Mass Needs Testing"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1932\" height=\"1288\" src=\"https:\/\/www.cherrycreekvet.com\/blog\/wp-content\/uploads\/2026\/11\/iStock-1310115274-2-1-1.jpg\" alt=\"Dog skin lump.\" class=\"wp-image-420\" srcset=\"https:\/\/www.cherrycreekvet.com\/blog\/wp-content\/uploads\/2026\/11\/iStock-1310115274-2-1-1.jpg 1932w, https:\/\/www.cherrycreekvet.com\/blog\/wp-content\/uploads\/2026\/11\/iStock-1310115274-2-1-1-768x512.jpg 768w, https:\/\/www.cherrycreekvet.com\/blog\/wp-content\/uploads\/2026\/11\/iStock-1310115274-2-1-1-1500x1000.jpg 1500w, https:\/\/www.cherrycreekvet.com\/blog\/wp-content\/uploads\/2026\/11\/iStock-1310115274-2-1-1-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 1932px) 100vw, 1932px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Petting your dog or cat is a mutually relaxing activity\u2014until your fingers discover something that definitely wasn\u2019t there yesterday.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While finding a dog lump under the skin or a cat lump under the skin can be startling, there are many possible explanations, and not every mass is dangerous.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Still, any new or changing lump deserves attention. At <a href=\"https:\/\/www.cherrycreekvet.com\/\">Cherry Creek Veterinary Hospital<\/a>, a thorough examination can help determine what that mysterious bump may be and whether further testing or treatment is needed.<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">What Is That Lump?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As pets grow older, it\u2019s common for them to develop more lumps and bumps, including benign growths such as lipomas. However, <a href=\"https:\/\/www.cherrycreekvet.com\/blog\/understanding-the-needs-of-senior-pets\/\">older pets<\/a> also have a higher risk of certain tumors, including malignant ones. Other masses can result from cysts, infections, injuries, or inflammation, and can occur at any age. Because harmless-looking lumps and more serious masses can feel remarkably similar, a veterinary mass evaluation is best.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Possible causes include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fatty growths called lipomas\u00a0<\/li>\n\n\n\n<li>Cysts\u00a0<\/li>\n\n\n\n<li>Abscesses or other <a href=\"https:\/\/www.cherrycreekvet.com\/blog\/365-days-of-peace-the-case-for-non-stop-flea-and-tick-protection-for-pets\/\">skin infections<\/a>\u00a0<\/li>\n\n\n\n<li>Benign tumors<\/li>\n\n\n\n<li>Malignant tumors\u00a0<\/li>\n\n\n\n<li>Inflammation following an injury or irritation\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">When Should a Lump Be Checked?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A newly-discovered lump is worth mentioning to your veterinarian, particularly if it is growing or changing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pay extra attention if the mass:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Grows noticeably over a short period\u00a0<\/li>\n\n\n\n<li>Changes shape, texture, or color\u00a0<\/li>\n\n\n\n<li>Becomes painful or irritated\u00a0<\/li>\n\n\n\n<li>Bleeds or develops discharge\u00a0<\/li>\n\n\n\n<li>Causes your pet to lick or scratch the area\u00a0<\/li>\n\n\n\n<li>Interferes with movement or daily activities\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Veterinary Mass Evaluations<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A veterinary mass evaluation usually begins with a physical examination. Your veterinarian may measure the lump, assess its location and characteristics, and look for changes in the surrounding tissue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Depending on the mass, your veterinarian may recommend collecting a small sample of cells for testing, often through fine-needle aspiration. A biopsy or surgical removal may be recommended when additional information is needed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.cherrycreekvet.com\/services\/diagnostics.html\">Diagnostic testing<\/a> matters because you can\u2019t reliably determine whether a mass is benign or malignant just by looking at it or feeling it.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Monitoring Your Pet\u2019s Lump<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you find a dog lump under the skin or a cat lump under the skin, and <a href=\"https:\/\/www.cherrycreekvet.com\/staff\/our-veterinarians.html\">your veterinarian<\/a> recommends keeping an eye on it, take occasional photographs and note its size and location. That makes it easier to recognize subtle changes and report them during future visits. If the lump changes, don\u2019t wait for the next <a href=\"https:\/\/www.cherrycreekvet.com\/blog\/the-importance-of-regular-check-ups-for-your-cat\/\">checkup<\/a> to mention it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Don\u2019t Let a Mysterious Mass Stay a Mystery<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Not every lump is a problem. But every new lump is worth noticing. Many pet masses turn out to be benign, while others benefit from early diagnosis and treatment. The next time you find an unexpected lump or bump while you\u2019re petting your furry friend, don\u2019t panic. Make a note of what you found and contact <a href=\"https:\/\/www.cherrycreekvet.com\/staff\/vetstaff.html\">our caring team<\/a> at <a href=\"tel:+1-916-349-2755\">(916) 349-2755<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Petting your dog or cat is a mutually relaxing activity\u2014until your fingers discover something that definitely wasn\u2019t there yesterday. While finding a dog lump under the skin or a cat lump under the skin can be startling, there are many possible explanations, and not every mass is dangerous. Still, any new or changing lump deserves [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[322],"class_list":["post-418","post","type-post","status-publish","format-standard","hentry","category-pet-wellness-preventive-care","tag-dog-lump-under-the-skin-cat-lump-under-the-skin-veterinary-mass-evaluation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Lumps Under Your Pet&#039;s Skin: When to Worry<\/title>\n<meta name=\"description\" content=\"A lump under your pet&#039;s skin may be harmless or need further testing. 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