What is a major health risk associated with needle sharing among drug users?

• A. Transmission of infectious diseases
• B. Increased tolerance to drugs
• C. Improved mental health
• D. Reduction of withdrawal symptoms

Answer: (A)

The major health risk associated with needle sharing among drug users is the transmission of infectious diseases. Sharing needles can lead to the spread of bloodborne pathogens, most notably Human Immunodeficiency Virus (HIV) and Hepatitis B and C. When multiple individuals use the same needle, any infectious agents present in one person's blood can be transferred to another, significantly increasing the risk of contracting these serious and potentially life-threatening diseases.

In contrast, the other options do not accurately reflect health risks related to needle sharing. Increased tolerance to drugs typically occurs due to repeated use rather than sharing needles. Improved mental health is not a consequence of needle sharing; in fact, substance abuse generally leads to deteriorating mental health. Similarly, while needle sharing can lead to various complications, it does not contribute to the reduction of withdrawal symptoms. Therefore, the primary and most significant health risk linked to this behavior is indeed the transmission of infectious diseases.