Is this a lipoma and abscess and what is the best solution? What is the possible cause? (photo)

This is not a lipoma. It is most likely a sebaceous cyst that has become infected. You need to see a surgeon for evaluation and treatment. Best wishes.

Lipomas are benign fatty tumors that occur under the skin and less commonly within the muscle. They are associated with mild discomfort and a lump underneath the skin. It is always best to talk to an expert plastic surgeon to determine whether the lipoma is possibly a cyst or a tumor or hernia. We would have to remove the lipoma to be sure that it is not something else and we usually do this by sending it to a pathologist for evaluation. If a lipoma is painful, then an exam is needed to make sure it is not compressing on a nerve or whether the diagnosis is different. Aftercare for a lipoma includes gentle compression and Plato’s Scar Serum twice daily on the wound.

Best,
Dr. Karamanoukian
Realself100 Surgeon

Thank you for sharing your question and photograph.  This appears to be an infected cyst which should be calmed down with antibiotics and possible drainage first, with removal of the cyst at a later point in time.  Best wishes.