All articles

Up-to-date, reliable HIV and sexual-health knowledge.

Free HIV Testing in Thailand: Where Can You Use Your Coverage?
ตรวจ HIV

Free HIV Testing in Thailand: Where Can You Use Your Coverage?

Every Thai national can test for HIV free twice a year, using a national ID card to verify eligibility. This article covers what free testing includes, where to go, how to use your right, and how to prepare before testing.

What Causes a False-Positive HIV Test Result?
ตรวจ HIV

What Causes a False-Positive HIV Test Result?

A false positive is a screening result that reads “possible infection” when the person isn’t actually infected. It can arise from pregnancy, autoimmune conditions, or technical factors. This article explains the causes, the two-step testing system that filters these out, and what to do if you get a reactive screen.

What Is Anonymous HIV Testing? No ID Needed — Where Can You Do It?
ตรวจ HIV

What Is Anonymous HIV Testing? No ID Needed — Where Can You Do It?

Anonymous HIV testing lets you test without revealing your real name, using a personal code instead — so privacy is very high. This article explains what anonymous testing is, how it differs from confidential testing, whether you need an ID card, where to do it, the process, and why it matters.

Rapid Test vs Gen 4 vs NAT: Which HIV Test Should You Choose?
ตรวจ HIV

Rapid Test vs Gen 4 vs NAT: Which HIV Test Should You Choose?

Rapid Test, Gen 4, and NAT are the three common HIV tests, each strong in a different way — speed, accuracy, convenience, and cost. This guide helps you choose which one fits your situation, with a comparison table and a decision flow.

HIV Self-Testing at Home: Blood-Based vs Oral (Saliva) Tests
ตรวจ HIV

HIV Self-Testing at Home: Blood-Based vs Oral (Saliva) Tests

Home HIV self-tests come in two main types: a fingerstick blood test and an oral-fluid (gum-swab, often called “saliva”) test. This guide explains how they differ, how to use them accurately, their accuracy, pros and cons, and what to do with your result.

What Is an HIV NAT Test? Why It Detects HIV the Earliest
ตรวจ HIV

What Is an HIV NAT Test? Why It Detects HIV the Earliest

A NAT (Nucleic Acid Test) looks for the virus’s genetic material directly, so it detects HIV the earliest — around 10–14 days after a risk. Here’s how NAT works, how it differs from antibody testing, who it suits, what it costs, and its limits.

What Is a 4th-Generation (Antigen/Antibody) HIV Test? How Accurate at 14 Days
ตรวจ HIV

What Is a 4th-Generation (Antigen/Antibody) HIV Test? How Accurate at 14 Days

A 4th-gen (Gen 4) HIV test looks for both the p24 antigen and antibodies in one test, so it detects HIV sooner than antibody-only testing. Here’s what Gen 4 detects, how accurate it is at 14 days, how it differs from other tests, the cost, and when to test.

Morning Fever, Diarrhoea, Night Sweats: HIV or Just the Flu?
HIV พื้นฐาน

Morning Fever, Diarrhoea, Night Sweats: HIV or Just the Flu?

A fever, diarrhoea, and night sweats after a risk lead many to worry about HIV. Here’s how these symptoms relate to HIV, how they differ from flu, what else could cause them, and when to get tested.

How Long Is the HIV Window Period? When Tests Can First Detect It
ตรวจ HIV

How Long Is the HIV Window Period? When Tests Can First Detect It

The HIV window period is the time after infection when a test can still miss it, giving a false negative. Here’s how soon each test can detect HIV, why a 90-day confirmatory test is advised, and the truth behind the “blood changes colour” myth.