Is hepatitis B more infectious than HIV?

The viruses are different, and the chance of transmission depends on the type of contact, the amount of virus present, and whether either person has protection. Hepatitis B may remain infectious in blood outside the body for a period of time, so sharing razors, toothbrushes, needles, or equipment contaminated with blood can create exposure. Sexual contact can also transmit hepatitis B. Ordinary social contact such as hugging, sharing food, or sitting near someone does not spread it.

Many people have no early symptoms. When symptoms occur, they can include tiredness, nausea, abdominal discomfort, or yellowing of the skin and eyes. Dark urine and fatigue deserve medical assessment when they occur with possible exposure.

Check whether you have received hepatitis B vaccination and ask a clinician whether testing is appropriate after a possible exposure. Do not share items that may carry blood, cover open cuts, and use barrier protection during sex until a clinician has discussed testing and vaccination with you. If a recent exposure involved blood or sexual contact, seek advice promptly because preventive treatment may be time-sensitive.

A clinician may order blood tests to look for current infection, past exposure, and immunity. A liver function test can help assess how the liver is responding, but it does not by itself confirm hepatitis B.

Arrange prompt medical advice after a needlestick, shared injection equipment, contact between another person’s blood and broken skin, or unprotected sex with a person who may have hepatitis B. Seek urgent care for confusion, severe vomiting, marked sleepiness, bleeding, or rapidly worsening yellow skin or eyes. These signs can indicate a serious liver problem and need direct assessment.

Ask whether your vaccination record shows protection, which blood tests are needed, whether household or sexual contacts should be tested, and how long to use extra precautions. You can also ask how to interpret liver tests and whether follow-up is needed if the first result is unclear.