What Must Be Done When You Get a Bruise With a Hard Lump?

By Staff WriterLast Updated Mar 25, 2020 6:53:51 AM ET
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Treatment using factor concentrate following a doctor's instructions is necessary if a lump emerges in a bruise or if the lump grows, according to the Hemophilia, von Willebrand Disease & Platelet Disorders Handbook. It helps to press on the skin immediately after taking a hard blow.