{"id":9095,"date":"2025-05-16T11:43:09","date_gmt":"2025-05-16T04:43:09","guid":{"rendered":"https:\/\/hbioclinic.com.vn\/?p=3132"},"modified":"2025-05-16T11:43:09","modified_gmt":"2025-05-16T04:43:09","slug":"how-to-identify-different-types-of-acne","status":"publish","type":"post","link":"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/","title":{"rendered":"How to Identify Different Types of Acne and Their Causes"},"content":{"rendered":"<p style=\"text-align: justify;\">Acne is a common dermatological issue affecting both men and women, impacting not only appearance but also reflecting the health of the skin. Each type of acne has its own causes and treatments, and misidentifying them can lead to mistakes that worsen the skin condition. In this article, <a href=\"https:\/\/hbioclinic.com.vn\/en\/\"><strong>HBIO Clinic<\/strong><\/a> will help you understand the common types of acne and their causes to guide you in proper skincare.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#What_is_acne_What_causes_acne\" >What is acne? What causes acne?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Non-inflammatory_acne_types\" >Non-inflammatory acne types<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Blackheads\" >Blackheads<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Whiteheads_hidden_acne_fungal_acne\" >Whiteheads (hidden acne, fungal acne)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Inflammatory_acne_types\" >Inflammatory acne types<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Nodular_acne\" >Nodular acne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Red_inflammatory_pimples_papules\" >Red inflammatory pimples (papules)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Cystic_acne\" >Cystic acne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Pustules\" >Pustules<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hbioclinic.com.vn\/en\/news-events\/how-to-identify-different-types-of-acne\/#Boils\" >Boils<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"What_is_acne_What_causes_acne\"><\/span><strong>What is acne? What causes acne?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Acne is a common dermatological issue, formed due to hormonal influences and clogged pores. Acne can vary in size and appear on the face, back, chin, neck, chest, shoulders, and buttocks. Among them, facial acne is the most common and includes blackheads, whiteheads, fungal acne, hidden acne, pustules, inflammatory pimples, etc. Each type has its own distinct characteristics.<\/p>\n<figure id=\"attachment_2455\" aria-describedby=\"caption-attachment-2455\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2455\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/cac-nguyen-nhan-gay-ra-mun.jpg\" alt=\"Common causes of acne to watch out for\" width=\"600\" height=\"375\" \/><figcaption id=\"caption-attachment-2455\" class=\"wp-caption-text\">Common causes of acne to watch out for<\/figcaption><\/figure>\n<p>Here are some of the main causes of acne:<\/p>\n<ul>\n<li>Hormonal changes in the body, especially during puberty, pregnancy, or perimenopause.<\/li>\n<li>Diets high in spicy foods, coffee, and carbohydrates.<\/li>\n<li>Improper skincare: not cleansing the skin thoroughly, not exfoliating regularly, or skipping moisturizers.<\/li>\n<li>Frequent makeup use, overuse of cosmetics, and using low-quality products.<\/li>\n<li>Side effects from certain medications such as corticosteroids, testosterone, lithium, etc.<\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Non-inflammatory_acne_types\"><\/span><b>Non-inflammatory acne types<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">There are many types of acne, but not all of them cause inflammation or swelling. Below are the most common non-inflammatory acne types, helping you recognize and care for your skin properly.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Blackheads\"><\/span><b><i>Blackheads<\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Blackheads are a type of non-inflammatory acne, appearing as dark spots on the skin\u2019s surface due to open comedones. When the core of the pimple is exposed to oxygen, it oxidizes and turns black.<\/p>\n<p>Signs of blackheads:<\/p>\n<ul>\n<li>Appear as tiny dots on the skin like pinheads; the core is open and visible to the naked eye.<\/li>\n<li>Size: 1\u20132mm.<\/li>\n<li>Black-colored tips.<\/li>\n<li>Usually appear in clusters.<\/li>\n<li>Common areas: nose, forehead, cheeks, shoulders, and back.<\/li>\n<\/ul>\n<figure id=\"attachment_2456\" aria-describedby=\"caption-attachment-2456\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2456\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-dau-den.jpg\" alt=\"Image of blackheads on the nose\" width=\"600\" height=\"600\" srcset=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-dau-den.jpg 500w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-dau-den-400x400.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2456\" class=\"wp-caption-text\">Image of blackheads on the nose<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Whiteheads_hidden_acne_fungal_acne\"><\/span><b><i>Whiteheads (hidden acne, fungal acne)<\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Whiteheads, also known as hidden acne or fungal acne, form when excess oil, dead skin cells, and bacteria build up and clog the pores. When the pores are blocked, the mixture gets trapped beneath the skin and pushes the skin upward, forming whiteheads. Since the core isn\u2019t exposed to oxygen, it doesn\u2019t oxidize, resulting in white color. This type of acne is usually non-inflammatory and easier to manage.<\/p>\n<p>Signs of whiteheads:<\/p>\n<ul>\n<li>Small white pimples, 1\u20132mm in size.<\/li>\n<li>Often appear in clusters, scattered on the chin, forehead, nose, and cheeks.<\/li>\n<li>No visible core, lie under the skin surface, causing the skin to feel rough.<\/li>\n<li>Do not cause pain or inflammation.<\/li>\n<li>Hard to see visually, mostly felt by touch.<\/li>\n<li>In some cases, whiteheads may indicate gastrointestinal issues or reproductive disorders.<\/li>\n<\/ul>\n<figure id=\"attachment_2457\" aria-describedby=\"caption-attachment-2457\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2457\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-an-li-ti.jpg\" alt=\"Image of tiny closed comedones on the forehead\" width=\"600\" height=\"600\" srcset=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-an-li-ti.jpg 500w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-an-li-ti-400x400.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2457\" class=\"wp-caption-text\">Image of tiny closed comedones on the forehead<\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Inflammatory_acne_types\"><\/span><b>Inflammatory acne types<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Inflammatory acne is often more severe, causing pain and swelling. Below are the common types of inflammatory acne and how to identify them to care for acne-prone skin more effectively.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Nodular_acne\"><\/span><b><i>Nodular acne <\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Nodular acne is a severe form of acne that damages the skin\u2019s structure, often causing pain and discomfort. Although it may heal on its own, it frequently leaves deep scars.<\/p>\n<p>Signs of nodular acne:<\/p>\n<ul>\n<li>Starts as small pimples, gradually becoming large, swollen, red, hard, and over 5mm in size.<\/li>\n<li>Painful to the touch, filled with pus and sometimes blood, but often has no visible core.<\/li>\n<li>The affected skin becomes tight and may scar after healing.<\/li>\n<\/ul>\n<figure id=\"attachment_2458\" aria-describedby=\"caption-attachment-2458\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2458\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-boc-la-tinh-trang-nang-cua-mun-trung-ca.jpg\" alt=\"Cystic acne is a severe type of acne\" width=\"600\" height=\"400\" srcset=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-boc-la-tinh-trang-nang-cua-mun-trung-ca.jpg 1000w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-boc-la-tinh-trang-nang-cua-mun-trung-ca-768x512.jpg 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2458\" class=\"wp-caption-text\">Cystic acne is a severe type of acne<\/figcaption><\/figure>\n<p style=\"text-align: justify;\">This condition is caused by inflammation, excess oil, dead skin cells, dirt, and bacteria irritating the pores. It mainly affects people with hormonal imbalances, poor detoxification, prolonged stress, or unhealthy diets and lifestyles.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Red_inflammatory_pimples_papules\"><\/span><b><i>Red inflammatory pimples (papules)<\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Red inflammatory pimples often evolve from whiteheads or blackheads. When excess sebum clogs pores and allows P. acnes bacteria to grow, the immune system responds by sending T-cells to fight, resulting in inflammation.<\/p>\n<p>Signs of red inflammatory pimples:<\/p>\n<ul>\n<li>Red bumps.<\/li>\n<li>Size: under 5mm.<\/li>\n<li>Mild pain when touched.<\/li>\n<li>Commonly appear on both cheeks.<\/li>\n<\/ul>\n<figure id=\"attachment_2459\" aria-describedby=\"caption-attachment-2459\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2459\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-viem-do-xuat-hien-o-hai-ben-ma-1200x675.jpg\" alt=\"Inflamed red acne appears on both cheeks\" width=\"600\" height=\"337\" srcset=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-viem-do-xuat-hien-o-hai-ben-ma-1200x675.jpg 1200w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-viem-do-xuat-hien-o-hai-ben-ma-768x432.jpg 768w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-viem-do-xuat-hien-o-hai-ben-ma.jpg 1480w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2459\" class=\"wp-caption-text\">Inflamed red acne appears on both cheeks<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cystic_acne\"><\/span><b><i>Cystic acne<\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cystic acne develops deep beneath the skin, forming red, swollen bumps like lumps. These bumps contain pus and cause intense pain and discomfort. If not treated properly, cystic acne can lead to permanent scarring.<\/p>\n<p>Signs of cystic acne:<\/p>\n<ul>\n<li>Large, swollen, and raised above the skin.<\/li>\n<li>May appear singly or in clusters.<\/li>\n<li>Often filled with pus, causing severe pain.<\/li>\n<li>Common areas: face, neck, back, and chest.<\/li>\n<\/ul>\n<figure id=\"attachment_2460\" aria-describedby=\"caption-attachment-2460\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2460\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-nang.jpg\" alt=\"H\u00ecnh \u1ea3nh m\u1ee5n nang ph\u00e1t tri\u1ec3n d\u01b0\u1edbi c\u1eb1m\" width=\"600\" height=\"338\" srcset=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-nang.jpg 800w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/hinh-anh-mun-nang-768x432.jpg 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2460\" class=\"wp-caption-text\">Image of cystic acne developing under the chin<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Pustules\"><\/span><b><i>Pustules<\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Pustules form when bacteria and sebum accumulate in the pores. They are usually smaller than cystic acne and do not develop deep under the skin.<\/p>\n<p>Signs of pustules:<\/p>\n<ul>\n<li>Yellowish pimples filled with pus, surrounded by a red ring.<\/li>\n<li>Mild pain when touched.<\/li>\n<li>Look like white pimples with a red halo.<\/li>\n<li>Swollen bumps filled with white or yellow pus.<\/li>\n<li>Avoid popping pustules to prevent scarring or worsening the inflammation.<\/li>\n<\/ul>\n<figure id=\"attachment_2461\" aria-describedby=\"caption-attachment-2461\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2461\" src=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-mu-xuat-hien-nhu-the-nao.jpg\" alt=\"How does pustular acne appear?\" width=\"600\" height=\"338\" srcset=\"https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-mu-xuat-hien-nhu-the-nao.jpg 1200w, https:\/\/hbioclinic.com.vn\/wp-content\/uploads\/2025\/04\/mun-mu-xuat-hien-nhu-the-nao-768x432.jpg 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-2461\" class=\"wp-caption-text\">How does pustular acne appear?<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Boils\"><\/span><b><i>Boils<\/i><\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Boils, or furuncle acne, are commonly seen in adults. They can cause serious complications when the infection spreads to the facial sinus area, potentially leading to venous sinus thrombosis or sepsis.<\/p>\n<p>Signs of boils:<\/p>\n<ul>\n<li>A form of inflamed pimple, usually found around the mouth.<\/li>\n<li>Starts as a painful, red bump, later develops pus and a blackhead-like core.<\/li>\n<li>Red, swollen, painful, and hot to the touch.<\/li>\n<li>May be accompanied by fatigue, high fever over 40\u00b0C, and restlessness.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">This article has provided detailed information about the different types of facial acne and their causes. We hope these insights help you take better care of your skin and support healthy recovery from within. For professional acne treatment and personalized skincare, visit HBIO Clinic for expert consultation and dedicated care.<\/p>","protected":false},"excerpt":{"rendered":"<p>Acne is a common dermatological issue affecting both men and women, impacting not only appearance but also reflecting the health of the skin. Each type of acne has its own causes and treatments, and misidentifying them can lead to mistakes that worsen the skin condition. In this article, HBIO Clinic will help you understand the<\/p>","protected":false},"author":8,"featured_media":2455,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-9095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-events"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Identify Different Types of Acne and Their Causes<\/title>\n<meta name=\"description\" content=\"Acne doesn\u2019t just affect your appearance\u2014it also reflects the health of your skin. 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