{"id":242494,"date":"2025-06-18T13:30:52","date_gmt":"2025-06-18T13:30:52","guid":{"rendered":"https:\/\/pharmeasy.in\/blog\/?p=242494"},"modified":"2026-03-25T11:00:20","modified_gmt":"2026-03-25T11:00:20","slug":"vaccine-how-hpv-can-lead-to-cancers","status":"publish","type":"post","link":"https:\/\/pharmeasy.in\/blog\/vaccine-how-hpv-can-lead-to-cancers\/","title":{"rendered":"How HPV Can Lead to Cancers"},"content":{"rendered":"\n\n<\/head>

Table of Contents<\/p>\nToggle<\/span>

Introduction<\/a><\/li>
How Is HPV Transmitted<\/a><\/li>
Symptoms of HPV<\/a><\/li>
How Does HPV Cause Cancer<\/a><\/li>
Different Types of Cancer Caused by HPV<\/a><\/li>
Diagnosis Methods<\/a><\/li>
When to See a Doctor<\/a><\/li>
Vaccines Available<\/a><\/li>
Conclusion<\/a><\/li>
Frequently Asked Questions (FAQs)<\/a><\/li>
\u00a0References<\/a><\/li><\/ul><\/nav><\/div>\n \n <\/span>\n $\"Join$ \n <\/a>\n
<\/span>Introduction<\/strong><\/span><\/h2>\n\n\n\nHuman Papillomavirus (HPV) is the most common sexually transmitted infection (STI) worldwide, with nearly 80% of the global population exposed by the age of 50 ^{1<\/sup><\/a>. While the immune system clears most HPV infections (within 1 to 2 years), persistent infection can be hazardous to health}^{2<\/sup><\/a>^,<\/sup>}^{3<\/sup><\/a>.\u00a0\u00a0<\/p>\n\n\n\n}
There are over 200 known subtypes of HPV that are broadly categorised into low-risk and high-risk types, with around 40 subtypes affecting the genital tract ^{2<\/sup><\/a>^,<\/sup>}^{4<\/sup><\/a>. Low-risk types, such as HPV 6 and 11, typically cause benign (non-cancerous) conditions like genital warts. In contrast, persistent infection with high-risk types (most notably HPV 16 and 18) can lead to precancerous lesions and malignancies. High-risk HPV types are associated with various cancers, including cervical, anal, oropharyngeal (back of the throat), and penile cancers}^{3<\/sup><\/a>.\u00a0<\/p>\n\n\n\n}
Vaccines are available and effective in preventing infection with the most common low and high-risk HPV types. However, global vaccination coverage still remains suboptimal ^{1<\/sup><\/a>^,<\/sup>}^{3<\/sup><\/a>. Therefore, understanding the link between persistent HPV infection and cancer is critical for prevention, early detection, and treatment strategies.\u00a0<\/p>\n\n\n\n}
<\/span>How Is HPV Transmitted<\/strong><\/span><\/h2>\n\n\n\n
HPV is mainly spread through skin-to-skin contact, especially during sexual activity. Here\u2019s how transmission can happen:\u00a0<\/p>\n\n\n\n
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Sexual contact: <\/strong>HPV is most often passed through mucocutaneous contact during sexual activity (vaginal, anal, or oral) with an HPV infected person. It is important to note that even without visible symptoms, the virus can still spread^{5<\/sup><\/a>.\u00a0\u00a0<\/li>\n\n\n\n}
Genital skin contact:<\/strong> HPV can be transmitted through close genital contact, even without penetration. Using shared sex toys (insertive types) can also carry risks^{5<\/sup><\/a>.\u00a0<\/li>\n\n\n\n}
Oral and anal sex:<\/strong> The virus can spread to the mouth and throat or the anus, especially with unprotected oral or anal sex^{5<\/sup><\/a>.<\/li>\n\n\n\n}
Self-inoculation:<\/strong> A person may transfer the virus from one part of their body to another, such as from the genitals to the mouth, by touch^{5<\/sup><\/a>.<\/li>\n\n\n\n}
Mother-to-child transmission (rare):<\/strong> An infected mother may pass HPV to her baby during childbirth, which can sometimes lead to throat warts in the baby^{5<\/sup><\/a>.\u00a0<\/li>\n<\/ul>\n\n\n\n}
<\/span>Symptoms of HPV<\/strong><\/span><\/h2>\n\n\n\n
Most people infected with HPV may not experience any symptoms. They may not even be aware that they have the virus. When symptoms do appear, they depend on the type of HPV involved. Common signs and symptoms include:\u00a0<\/p>\n\n\n\n
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Low-risk HPV types: <\/strong>These may lead to genital warts (small, rough, skin-coloured growths) that can appear on the vagina, penis, or anus and also cause symptoms such as itching, discomfort, or bleeding in the affected area. Rarely, they may also cause lumps on the throat (known as respiratory papillomatosis)^{2<\/sup><\/a>^,<\/sup>}^{3<\/sup><\/a>.\u00a0<\/li>\n\n\n\n}
High-risk HPV types<\/strong>: These strains can cause cellular changes that may slowly and gradually develop into cancer (over many years). These changes (early lesions) may not produce noticeable symptoms in the beginning. However, if the infection persists and progresses to advanced-stage HPV, it can eventually cause symptoms such as pain, bleeding, or noticeable lumps, depending on the location of the cancer (e.g., cervix, anus, or throat)^{6<\/sup><\/a>.\u00a0<\/li>\n<\/ul>}
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