Advertisement

What evidence links personal hair dye with risk of NHL?

A number of studies have investigated the relationship between the personal use of hair dyes and the risk of NHL, with inconsistent results. Because the small size of some studies may have limited their ability to detect associations, a pooled (combined) analysis of four case-control studies was carried out. All four studies had obtained detailed information on hair dye use, including dates and duration of use, and on NHL subtype. The pooled analysis included 4,461 women with NHL and 5,799 women who did not have NHL. The results of the study showed that women who began using hair dye before 1980 had a slightly (30 percent) increased risk of NHL compared with women who had never used hair dye, whereas no such increase in risk was seen for women who began using hair dye after 1980.

When the researchers analyzed the risks of several specific NHL subtypes, they found that hair dye users had increased risks of both follicular lymphoma and chronic lymphocytic leukemia/small lymphocytic lymphoma. For the most part, the increases were limited to women who began using hair dye before 1980, although an increased risk of follicular lymphoma was observed among women who began using dark-colored dyes after 1980. Although these results are consistent with the idea that earlier hair dyes were more carcinogenic, it is also possible that the absence of increased risk for hair dye users who began using dyes after 1980 reflects lower cumulative exposure levels or insufficient time since first exposure for any increase in risk to become apparent.

This answer is based on source information from the National Cancer Institute.

Continue Learning about Non-Hodgkin's Lymphoma

Should You Get a Second Opinion for Hodgkin’s Lymphoma?
Should You Get a Second Opinion for Hodgkin’s Lymphoma?
It’s understandable for patients diagnosed with Hodgkin’s lymphoma (HL) to consider working with a new oncologist—especially when there is a recurrenc...
Read More
Are Hodgkin's lymphoma and Non-Hodgkin's lymphoma the same disease?
Honor Society of Nursing (STTI)Honor Society of Nursing (STTI)
Hodgkin's lymphoma and Non-Hodgkin's lymphoma are not the same disease, although they are both cance...
More Answers
What is anaplastic large cell lymphoma?
Honor Society of Nursing (STTI)Honor Society of Nursing (STTI)
Anaplastic large cell lymphoma is an aggressive (fast-growing) type of non-Hodgkin lymphoma that is ...
More Answers
Treating an Aggressive Form of Non-Hodgkin’s Lymphoma
Treating an Aggressive Form of Non-Hodgkin’s LymphomaTreating an Aggressive Form of Non-Hodgkin’s LymphomaTreating an Aggressive Form of Non-Hodgkin’s LymphomaTreating an Aggressive Form of Non-Hodgkin’s Lymphoma
Learn about the goals of treatment, the treatment options and the important questions to ask your healthcare team.
Start Slideshow

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.