I had a slimming pen inserted into my stomach and it left bruises. Is this normal?

Bruising after using a slimming pen is common. Normal and harmless. Yes, it's caused by a small needle accidentally pricking a capillary under the skin, resulting in a small amount of bleeding. This bruise will... It will gradually fade away on its own within 1-2 weeks. The patient can take care of themselves by... Apply a cold compress during the first 24 hours. To reduce bleeding and change to... Apply a warm compress the following day. To help bruises heal faster, along with... Avoid injecting repeatedly into bruised areas. However, if the patient notices that the bruise is getting bigger or has any symptoms... Swelling, redness, heat, severe pain, or any other unusual symptoms. You should see a doctor immediately.