Had a penicillin shot for syphilis in my lower hip about 5 days back. The pain was pretty bad for a couple of days but then got better. Now I've got this hard lump at the injection site. Theres no redness or irritation and it's not visible, but I can feel it when I touch it, it's hard and a bit sore. Tried using a hot compress but the lump's still there. Should I be worried about it?

Dr Shubham Chauhan

General Practitioner

• MBBS
• 4+ Yrs

Consult Now

The hard lump at the injection site is likely a localized reaction to the penicillin injection, which can cause inflammation, scarring, or granuloma formation; as long as there's no increasing pain, redness, or swelling, it's probably benign, but monitor the lump's size and tenderness, and consult your doctor if it persists or worsens, as they may recommend further evaluation or treatment, such as antibiotics or steroid injections.

Answered 22 days ago