Hello @Liz4
Thank you for your post and welcome to our forum.
We are sorry to hear that your son has a swollen lymph node and that this is causing you to feel worried, although it is totally understandable to feel this way.
It sounds like your son has done the right thing by going to the GP as we would advise to get any concerns, new or persistent lumps or bumps or any new or worsening symptoms checked out by the GP.
It is reassuring that he is going for an ultrasound and sounds like the GP is being thorough, but we can imagine it is daunting to have this wait. We hope others can share their experiences with you. In case it is useful, there is a thread of people talking through similar situations and can be found via Hard Lump behind Left Ear - Worried you might have a blood cancer? - Blood Cancer UK Online Community Forum
Lymph nodes can be swollen for numerous causes which can range from infections such as colds, tonsilitis, glandular fever and other viral or bacterial infections, to allergies, chronic or immune conditions such as arthritis or lupus as well as cancers such as a lymphoma.
Sometimes after having an infection, lymph nodes can stay raised for long periods of time, they may even go up and down and are sometimes referred to as ‘reactive lymph nodes’. It is important to still get this assessed by the GP and be mindful of any additional symptoms such as drenching night sweats, feeling exhausted/ fatigued, itching, fevers, coughing, feeling short of breath or unexplained weight loss which the GP should also be informed of.
For our guide, please see our page Blood cancer symptoms and signs | Blood Cancer UK
If you would like to talk anything through with one of our team members, please give us a call on 0808 2080 888.
Warm wishes,
Emma (Support Services Nurse