<s>[INST] hi i was wondering if you could answer some of my questions in December i noticed this small lump on my lower abdomen right side. and it has grown it a little since then. it doesnt hurt but sometimes its bothersome. i do however have lower back pain and often get swelling on my stomach the right side. [/INST] Welcome to Chat Doctor. 1. The symptoms and location suggest the possible cause could be inguinal hernia with variation in the size and pain less lump in the lower abdominal region.2. In this case after examination one will ask for an ultrasound scan which is investigation of choice.3. The ultrasound will help in assessing the lump, its source, extension and nature of the lump, if hernia the defect measurement.4. In case of henna with cough reflex, the herniating contents, its vascularity, presence of strangulation is assessed. 5. The treatment include operative with placement of a mesh and followed by a course of antibiotics. Good luck. Hope I have answered your query,anything to ask do not hesitate to ask.http://doctor.ChatDoctor .com/doctors/ Chat Doctor.  </s>