A 32-year-old member asked:
Pea-sized lump at humatrope (human growth hormone) injection site?
1 doctor answer • 2 doctors weighed in

Dr. Peter Kurzweilanswered
Internal Medicine 51 years experience
Irritation, allergy: One can have a local reaction that can be a lump; but another possibility is that the body is developing antibodies to the injected growth hormone. This is more serious, and can lead to more serious reactions with each injection. The treating physician needs to evaluate.
5.8k viewsReviewed >2 years ago
Last updated Aug 5, 2012
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